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9/11 Timeline

Mohammed Haydar Zammar

Project: 9/11 Timeline
Open-Content project managed by matt, Paul, KJF

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Mohammed Haydar Zammar, who will later be the chief recruiter for and a key member of the al-Qaeda Hamburg cell, travels widely and joins al-Qaeda. Zammar was born in Syria but his family moved to Hamburg, Germany, in 1971. He became a German citizen and renounced his Syrian citizenship about a decade later. By his late teens, he developed a friendship with Mamoun Darkazanli, a fellow Syrian, and both of them joined the Muslim Brotherhood, a radical Muslim group banned in Egypt. Zammar worked as an auto mechanic until about 1991, when he decides to become a full time militant, and he mostly lives on government benefits after that.
Training and Fighting in Afghanistan - In 1991, Zammar goes to Afghanistan and trains at an elite camp linked to Afghan warlord Gulbuddin Hekmatyar. He fights with Hekmatyar’s forces against the Communist Afghan government before returning to Hamburg by the end of 1991.
Active in Many Countries - Over the next five years, he makes about 40 trips out of Germany, often to countries where Islamist militants are fighting. In 1995, he fights in Bosnia with other Arabs against the Serbians. In 1996, he goes to Afghanistan again and formally pledges allegiance to Osama bin Laden and al-Qaeda, according to an unnamed Arab intelligence agency.
His Travels Cause Attention - All of Zammar’s traveling brings him to the attention of Turkish intelligence, and it notifies German intelligence about his radical militant links in 1996 (see 1996). Knowing that his militant activity is not illegal in Germany as long as he is not involved in a plot targeting Germany, Zammar speaks openly about his travels and exploits, and he becomes very well known within the Islamist extremist community in Hamburg. He begins recruiting others to become active militants and attend Afghan training camps. [Washington Post, 9/11/2002; New York Times, 1/18/2003]

Entity Tags: Osama bin Laden, Al-Qaeda, Gulbuddin Hekmatyar, Mamoun Darkazanli, Mohammed Haydar Zammar

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Al-Qaeda leader Mamdouh Mahmud Salim (a.k.a. Abu Hajer) makes frequent visits to Hamburg, Germany, and sometimes attends the Hamburg mosque that is attended by a few of the future 9/11 hijackers. [Vanity Fair, 1/2002] The 9/11 Congressional Inquiry will later say that Salim was Osama bin Laden’s “right hand man.” [US Congress, 7/24/2003, pp. 51 pdf file] Starting in 1995, Salim makes frequent visits to Germany. Some of these trips are to Hamburg. Salim has links to Mamoun Darkazanli, who lives in Hamburg and has signing powers over Salim’s bank account. [Vanity Fair, 1/2002] Salim first opens a bank account in Hamburg with Darkazanli in 1995. [Boston Globe, 10/6/2001] Darkazanli is also friends with Mohammed Haydar Zammar. Salim has links to Zammar as well. The nature of these links is unclear, but US and German intelligence will later investigate Zammar due to his links with Salim (see Shortly After September 16, 1998). [Der Spiegel (Hamburg), 12/12/2005] Zammar and Darkazanli both regularly attend the Al-Quds mosque in Hamburg. When Salim visits Hamburg, he attends the Al-Quds mosque as well. [Vanity Fair, 1/2002] Beginning in early 1996, future 9/11 hijacker Mohamed Atta and other members of his future al-Qaeda Hamburg cell begin regularly attending the Al-Quds mosque, with different members joining at different times (see Early 1996). The mosque holds about 150 people for Friday prayers. [McDermott, 2005, pp. 1-5] It is not known if Salim ever meets with Atta or any other members of the Hamburg cell. But Zammar, at least, is considered part of the cell, and he or Darkazanli could have introduced Salim to some of the others. One key member of the cell, Said Bahaji, is frequently seen at the Al-Quds mosque with Zammar and Darkazanli. [McDermott, 2005, pp. 72] On September 16, 1998, Salim is arrested in Munich, Germany, ending any link he might have had to the al-Qaeda Hamburg cell (see September 16, 1998). It is not known if US or German investigators ever learn of the link between Salim and the Al-Quds mosque before 9/11.

Entity Tags: Mohammed Haydar Zammar, Mohamed Atta, Mamoun Darkazanli, Al-Qaeda, Said Bahaji, Mamdouh Mahmud Salim

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

In 1996, German authorities begin investigating Mamoun Darkazanli, Mohammed Haydar Zammar, and four others for money laundering. The investigation apparently begins with Darkazanli and four unnamed others, and grows to incorporate Zammar. Darkazanli and Zammar are friends, and both are closely linked to the al-Qaeda Hamburg cell. The investigation is run by the Bundeskriminalamt (BKA), Germany’s federal crime investigation agency. In late 1998, Darkazanli will be increasingly suspected for various other terrorism ties. But in early 2000, chief federal prosecutor Kay Nehm will refuse to initiate terrorism investigation proceedings against him, saying there is not enough evidence. Prior to 9/11, German law makes it hard to convict anyone for a terrorism offense unless it can be proven they were involved in an attack on German soil. However, Der Spiegel will later note that while that was true, Darkazanli could have been charged with money laundering instead. The money laundering investigation will resume shortly after 9/11. [Der Spiegel (Hamburg), 10/29/2001]

Entity Tags: Mohammed Haydar Zammar, Kay Nehm, Bundeskriminalamt Germany, Mamoun Darkazanli

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Mohammed Haydar Zammar.Mohammed Haydar Zammar. [Source: Knut Mueller]Turkish intelligence informs Germany’s domestic intelligence service that Mohammed Haydar Zammar is a radical militant who has been traveling to trouble spots around the world. Zammar has already made more than 40 journeys to places like Bosnia and Chechnya, and in 1996 he pledges his allegiance to al-Qaeda during a trip to Afghanistan (see 1991-1996). Turkey explains that Zammar is running a dubious travel agency in Hamburg, organizing flights for radical militants to Afghanistan. As a result, by early 1997, German intelligence will launch Operation Zartheit (Operation Tenderness), an investigation of Islamic militants in the Hamburg area. The Germans will use a full range of intelligence techniques, including wiretaps and informants. [Stern, 8/13/2003; Vanity Fair, 11/2004] Operation Zartheit will run for at least three years and connect Zammar to many of the 9/11 plotters (see March 1997-Early 2000).

Entity Tags: Mohammed Haydar Zammar, Bundesamt fur Verfassungsschutz

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

The Al-Quds mosque in Hamburg.The Al-Quds mosque in Hamburg. [Source: Knut Muller]Future 9/11 hijacker Mohamed Atta and other members of the Hamburg cell begin regularly attending the Al-Quds mosque. Atta becomes a well-known figure both there and at other mosques in the city. He grows a beard at this time, which some commentators interpret as a sign of greater religious devotion. The mosque is home to numerous radicals. For example, the imam, Mohammed Fazazi, advocates killing non-believers and encourages his followers to embrace martyrdom (see 1993-Late 2001 and Early 2001).
Atta Teaches Classes at Al-Quds - After a time, Atta begins to teach classes at the mosque. He is stern with his students and criticizes them for wearing their hair in ponytails and gold chains around their necks, as well as for listening to music, which he says is a product of the devil. If a woman shows up, her father is informed she is not welcome. This is one of the reasons that, of the 80 students that start the classes, only a handful are left at the end.
Other Hijackers and Cell Members Attend Al-Quds - One of Atta’s associates, Ramzi bin al-Shibh, also teaches classes at the mosque. 9/11 hijackers Marwan Alshehhi and Ziad Jarrah start attending the mosque at different times and possibly first meet Atta there. Other mosque attendees who interact with the future hijackers at the mosque include Said Bahaji, and al-Qaeda operatives Mamoun Darkazanli and Mohammed Haydar Zammar.
Is the Mosque Monitored? - According to author Terry McDermott, German investigators notice Bahaji meeting frequently with Darkazanli and Zammar at the mosque, so they presumably have a source inside it. [PBS Frontline, 1/2002; Burke, 2004, pp. 242; McDermott, 2005, pp. 1-5, 34-37, 72] The German newspaper Frankfurter Allgemeine Zeitung will later report that there probably is an informer working for the LfV, the Hamburg state intelligence agency, inside the mosque by 1999. Somehow, the LfV is very knowledgeable about Atta and some his associates, and their behavior inside the mosque (see (April 1, 1999)). [Frankfurter Allgemeine Zeitung (Frankfurt), 2/2/2003] Radical imam Fazazi will continue to preach at the mosque until late 2001 (see Mid-September-Late 2001).

Entity Tags: Said Bahaji, Ramzi bin al-Shibh, Mohammed Haydar Zammar, Mohammed Fazazi, Ziad Jarrah, Marwan Alshehhi, German State Office of Constitutional Security, Mohamed Atta, Mamoun Darkazanli

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Mohamed Atta, Key Hijacker Events, Ziad Jarrah, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

German intelligence unsuccessfully attempts to turn Mohammed Haydar Zammar into an informant. In 1996, the Office for the Protection of the Constitution (BfV), Germany’s domestic intelligence service, learned that Zammar had extensive Islamist militant ties (see 1996). In 1997, the BfV starts an investigation into Islamist militants in Hamburg that is centered on Zammar (see March 1997-Early 2000). Apparently, as part of this investigation, two BfV officials meet with him twice and attempt to get him to become an informant. However, Zammar strongly rejects the proposal. He says he will not serve the West, but will only serve Allah and jihad. However, he is careful to note that he is only interested in jihad outside of Germany, because under German law at this time it is not illegal to be a member of a violent militant group as long as all the violence takes place outside of Germany. [Der Spiegel (Hamburg), 11/21/2005] German intelligence will continue monitoring Zammar and many of his associates in Hamburg (see for instance March 1997-Early 2000, October 2, 1998, and July 2001).

Entity Tags: Bundesamt fur Verfassungsschutz, Mohammed Haydar Zammar

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Mohammed Haydar Zammar, a member of the al-Qaeda Hamburg cell with three of the 9/11 hijackers, is monitored as he gets help in meeting al-Qaeda spiritual leader Abu Qatada in Britain. In March 1997, Zammar in Germany calls Barakat Yarkas in Spain. Yarkas is widely seen as the top leader of al-Qaeda in Spain, and Spanish intelligence is monitoring his calls. Telephone intercepts show that Zammar tells Yarkas, “I want to meet with brother Abu Qatada,” Zammar said, according to a transcript of the conversation. Yarkas replies, “Yes, I’ll talk to him and I’ll ask him.” Yarkas gives Qatada’s phone number to Zammar two days later. Zammar goes on to meet Qatada, but details of that meeting are unknown. [Los Angeles Times, 1/30/2003] Yarkas has been traveling to Britain for years, meeting with Qatada and giving him money (see 1995-February 2001). In 1996 or 1997, US intelligence learns that Qatada is a key spiritual adviser for al-Qaeda (see June 1996-1997). Shortly before Zammar’s call to Yarkas, British intelligence recruited Qatada as an informant, although he may not be a fully honest one (see June 1996-February 1997). It is unknown if Zammar’s visit with Qatada becomes known to US or German intelligence. Zammar may introduce Hamburg cell member Said Bahaji to Qatada, because Qatada’s phone number will be found in Bahaji’s address book shortly after 9/11 (see Shortly After September 11, 2001).

Entity Tags: Barakat Yarkas, Abu Qatada, Mohammed Haydar Zammar, Centro Nacional de Inteligencia

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Al-Qaeda operative Mohammed Haydar Zammar probably recruits future 9/11 hijacker Mohamed and other key members of the Hamburg cell into al-Qaeda this year. According to Time magazine, “US investigators believe [Zammar] may have persuaded Atta’s Islamic study group to offer its services to al-Qaeda around 1998.” Zammar was frequently seen by neighbors with Atta starting in 1997 (see 1997). [Time, 7/1/2002]
Zammar Being Monitored by US and German Intelligence - German intelligence began heavily monitoring Zammar in early 1997 and this continues until at least early 2000 (see March 1997-Early 2000). The CIA also appears to be monitoring Zammar by this time. Author Terry McDermott will later comment: “[T]he CIA told the [9/11 Congressional Inquiry] it had a long-standing interest in Zammar that pre-dated [a wiretap done in March 1999 (see March 1999)]. In other words, the CIA appears to have been investigating the man who recruited the hijackers at the time he was recruiting them.” [McDermott, 2005, pp. 73, 278-279]

Entity Tags: Mohammed Haydar Zammar, Mohamed Atta, Terry McDermott

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

The arrest of al-Qaeda leader Mamdouh Mahmud Salim (a.k.a. Abu Hajer) points US and German investigators to Mohammed Haydar Zammar, a member of the al-Qaeda cell in Hamburg, Germany, with a few of the future 9/11 hijackers. Salim is arrested on September 16, 1998, in Munich, Germany (see September 16, 1998). He is believed to be al-Qaeda’s financial chief, and is one of al-Qaeda’s founding members (see August 11-20, 1988). After Salim’s arrest, both German and US intelligence investigate his contacts in Germany and discover a link to Zammar. Zammar is already being investigated and monitored by the Office for the Protection of the Constitution (BfV), Germany’s domestic intelligence service (see March 1997-Early 2000). [Der Spiegel (Hamburg), 12/12/2005] Presumably, the link between Zammar and Salim should increase the urgency of the German investigation. It is unknown when US intelligence begins monitoring Zammar, but the US will discover important links between Zammar and al-Qaeda in the summer of 1999 (see Summer 1999). US and German investigators also discover a link between Salim and Mamoun Darkazanli, a Hamburg associate of Zammar’s, and they monitor him as well (see Late 1998).

Entity Tags: Mamdouh Mahmud Salim, Mohammed Haydar Zammar, Mamoun Darkazanli, Bundesamt fur Verfassungsschutz, Al-Qaeda, US intelligence

Timeline Tags: Complete 911 Timeline

Category Tags: Counterterrorism Action Before 9/11, Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

The Marienstrasse building.The Marienstrasse building. [Source: Associated Press]Future 9/11 hijacker Mohamed Atta, al-Qaeda operatives Said Bahaji and Ramzi Bin al-Shibh, and others in the al-Qaeda Hamburg cell move into a four bedroom apartment at 54 Marienstrasse, in Hamburg, Germany, and some of them stay there until February 2001. Investigators will later believe this move marks the formation of the Hamburg al-Qaeda cell. [Los Angeles Times, 1/27/2002; New York Times, 9/10/2002] Up to six men at a time live at the apartment, including, at times, 9/11 hijacker Marwan Alshehhi and cell member Zakariya Essabar. Alshehhi moves out after the first month; it is unclear why. [New York Times, 9/15/2001] During the 28 months Atta’s name is on the apartment lease, 29 Middle Eastern or North African men register the apartment as their home address.
Surveillance of Bahaji - From the very beginning, the apartment is under surveillance by German intelligence, because of investigations into businessman Mamoun Darkazanli that connect to Bahaji. [Washington Post, 10/23/2001] The Germans also suspect connections between Bahaji and al-Qaeda operative Mohammed Haydar Zammar. [Los Angeles Times, 9/1/2002] Bahaji is directly monitored for at least part of 1998, but German officials will not disclose when the probe began or ends. This investigation is dropped for lack of evidence (see (Late 1998)). [Associated Press, 6/22/2002; Los Angeles Times, 9/1/2002] Bahaji moves out in July 1999 and gets married a few months later (see October 9, 1999). [Der Spiegel (Hamburg), 8/29/2011]
Surveillance of El Motassadeq - German intelligence monitors the apartment off and on for months, and wiretaps Mounir El Motassadeq, an associate of the apartment-mates who will later be convicted for assisting the 9/11 plot, but apparently it does not find any indication of suspicious activity (see August 29, 1998). [Chicago Tribune, 9/5/2002]
Surveillance of Zammar - Zammar, a talkative man who has trouble keeping secrets, does not live at the apartment, but he is a frequent visitor to the many late night meetings there. [Miller, Stone, and Mitchell, 2002, pp. 259-60; Los Angeles Times, 9/1/2002; Chicago Tribune, 9/5/2002] He even lives in the apartment for a time in February 1999 (see February 1999). Zammar is the focus of an investigation that began in 1997 and continues until early 2000 (see March 1997-Early 2000). Interest in monitoring him increases in late 1998 (see October 2, 1998).
Surveillance of Atta - The CIA also allegedly starts monitoring Atta in early 2000 while he is living at the apartment, and does not tell Germany of the surveillance (see January-May 2000). Atta leaves Germany to live in the US in June 2000 (see June 3, 2000).
No Direct German Surveillance of the Apartment? - Yet, even though people like Zammar who frequently phone and visit the apartment are monitored, German officials will later claim that the apartment itself is never bugged. An unnamed senior German security official will later say that some surveillance of associated people gives “the impression that the people living there were fanatical believers. At the BfV [Germany’s domestic intelligence agency], we had to decide whether to ask permission to place a wiretap on the line at 54 Marienstrasse itself. We discussed this every day.” But he will claim that they ultimately decide they will not be able to get legal permission for a wiretap because there is no evidence that the apartment’s occupants are breaking any laws. [Vanity Fair, 11/2004] This claim that the apartment was not directly monitored seems contradicted by reports that Bahaji was the target of a surveillance investigation when he was living in the Marienstrasse apartment in late 1998 (see (Late 1998)).
What Would More Surveillance Have Uncovered? - It will later be clear that investigators could have found evidence if they looked more thoroughly. For instance, one visitor will recall Atta and others discussing attacking the US. [Knight Ridder, 9/9/2002] 9/11 mastermind Khalid Shaikh Mohammed is in Hamburg several times in 1999 and comes to the apartment. However, although there is a $2 million reward for Mohammed since 1998, the US apparently fails to tell Germany what it knows about him (see 1999). [Newsweek, 9/4/2002; New York Times, 11/4/2002] 9/11 Hijacker Waleed Alshehri also apparently stays at the apartment “at times.” [Washington Post, 9/14/2001; Washington Post, 9/16/2001] Remarkably, shortly after 9/11, the German government will claim it knew little about the Hamburg al-Qaeda cell before 9/11, and nothing directed it towards the Marienstrasse apartment. [Daily Telegraph, 11/24/2001]

Entity Tags: Mamoun Darkazanli, Khalid Shaikh Mohammed, Said Bahaji, Marwan Alshehhi, Central Intelligence Agency, Mohamed Atta, Mounir El Motassadeq, Al-Qaeda, Mohammed Haydar Zammar, Zakariya Essabar, Ramzi bin al-Shibh, Bundesamt fur Verfassungsschutz

Timeline Tags: Complete 911 Timeline

Category Tags: Mohamed Atta, Marwan Alshehhi, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

According to author Terry McDermott, by late 1998, German intelligence knows all the key names of the al-Qaeda Hamburg cell led by 9/11 hijacker Mohamed Atta and hijacker associate Ramzi bin al-Shibh. This is mostly due to the on-going surveillance of Mohammed Haydar Zammar and Mamoun Darkazanli (see March 1997-Early 2000, Late 1998 and December 1999). It is not clear if the group is seen as an al-Qaeda cell, or just a bunch of radical Islamists. One unnamed senior German intelligence official will say in November 2001, “We only knew them as radical Muslims. This is not a crime.” This person will add, “They might have had contact with followers of Osama bin Laden. This also is not a crime.” [McDermott, 2005, pp. 73, 279] It is unknown if Germany shares this intelligence with the US.

Entity Tags: Mohamed Atta, Mamoun Darkazanli, Mohammed Haydar Zammar, Ramzi bin al-Shibh

Timeline Tags: Complete 911 Timeline

Category Tags: Mohamed Atta, Mohammed Haydar Zammar, Ramzi Bin Al-Shibh, Al-Qaeda's Hamburg Cell, Key Hijacker Events

German intelligence passes information about Mohammed Haydar Zammar to the CIA. Zammar is a member of al-Qaeda’s cell in Hamburg, Germany, which includes a few of the future 9/11 hijackers. According to a 2005 Der Spiegel article, the CIA has its own undercover agent in Hamburg, because it is “concerned that Hamburg could be developing into a launching pad for volunteers being sent to Afghanistan to support bin Laden in his cause.” Because of this German intelligence, Zammar makes it “onto the Americans’ internal most-wanted list.” [Der Spiegel (Hamburg), 11/21/2005] It is not known exactly when in 1999 Germany gives this information to the CIA, but it gives information on one of the 9/11 hijackers in Hamburg to the CIA in March 1999 (see March 1999). Ironically, around the summer of 1999, the CIA learns that Zammar is in direct contact with a senior al-Qaeda operational coordinator, but it fails to tell German intelligence about this (see Summer 1999).

Entity Tags: Central Intelligence Agency, German intelligence community, Mohammed Haydar Zammar

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Marwan Alshehhi. This picture is taken from his US visa.Marwan Alshehhi. This picture is taken from his US visa. [Source: FBI]German intelligence is tapping the telephone of al-Qaeda operative Mohammed Haydar Zammar, and on this date, Zammar gets a call from a “Marwan.” This is later found to be future 9/11 hijacker Marwan Alshehhi. Marwan talks about mundane things, like his studies in Bonn, Germany, and promises to come to Hamburg in a few months. German investigators trace the telephone number and determine the call came from a mobile phone registered in the United Arab Emirates (UAE). [US Congress, 7/24/2003 pdf file; Deutsche Presse-Agentur (Hamburg), 8/13/2003; New York Times, 2/24/2004] Although the call is short and seemingly innocuous, according to Vanity Fair, some “parts of the conversation seemed redolent of some kind of conspiratorial code.” For instance, at one point, Alshehhi says, “I’ve heard your mother died.” Zammar replies: “Yes, she passed on. She left me alone.” Alshehhi then asks: “But your father didn’t travel with you? I’ve seen him here.” Zammar answers, “No, my father is here.” Regarding whether or not it actually is code, a senior German official will later say: “Our desk officer had a certain feeling about that call.… You can say it was his nose—not that there was any single statement, but he had a feeling that there could be more behind it.” The desk officer writes a report about the call. Then, about a month later, the BfV (German domestic intelligence) will contact the CIA and ask for more information about men from the UAE named Marwan, and for help in tracing the phone number (see March 1999). [Vanity Fair, 11/2004]

Entity Tags: Mohammed Haydar Zammar, Marwan Alshehhi, Central Intelligence Agency, Bundesamt fur Verfassungsschutz

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Said Bahaji, computer expert for the Hamburg cell.Said Bahaji, computer expert for the Hamburg cell. [Source: German Bavarian Police]German intelligence monitors a phone call in which the names of key members of the al-Qaeda Hamburg cell are mentioned. Future 9/11 hijacker Mohamed Atta’s full name and telephone number are even mentioned. German domestic intelligence (BfV) has been monitoring al-Qaeda operative Mohammed Haydar Zammar’s telephone (see March 1997-Early 2000). On this day, Zammar is not home, but his parents speak to each other on the phone and are trying to figure out where he is. One of them suggests that Zammar is at a meeting with “Mohamed, Ramzi, and Said,” and can be reached at the phone number of the Marienstrasse apartment where all three of them live. This refers to cell members Atta, Ramzi Bin al-Shibh, and Said Bahaji. “Mounir”—cell member Mounir El Motassadeq—is mentioned as well. However, apparently German intelligence fails to grasp the importance of these names, even though Bahaji and El Motassadeq are also under investigation at this time (see August 29, 1998). The Marienstrasse apartment is the center of the cell’s activity (see November 1, 1998-February 2001). [Associated Press, 6/22/2002; New York Times, 1/18/2003; Der Spiegel (Hamburg), 2/3/2003] Atta’s first and last name are mentioned in the phone call between Zammar’s parents. Agents check the Marienstrasse phone number, which they find is registered to Bahaji. They also confirm the street address, but it is not known what they make of the information. [Der Spiegel (Hamburg), 2/3/2003]

Entity Tags: Ramzi bin al-Shibh, Mounir El Motassadeq, Said Bahaji, Mohamed Atta, Mohammed Haydar Zammar, Bundesamt fur Verfassungsschutz

Timeline Tags: Complete 911 Timeline

Category Tags: Mohamed Atta, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

German intelligence gives the CIA the first name of 9/11 hijacker Marwan Alshehhi and his telephone number of a phone registered in the United Arab Emirates (UAE). The Germans learned the information from the surveillance of al-Qaeda Hamburg cell member Mohammed Haydar Zammar (see March 1997-Early 2000). They tell the CIA that Alshehhi, who is living in Bonn, Germany, at the time, may be connected to al-Qaeda. He is described as a UAE student who has spent some time studying in Germany. The conversation is short, but a known alias of Mamoun Darkazanli is mentioned. The CIA is very interested in Darkazanli and will try to recruit him as an informant later in the year (see Late 1998 and December 1999). [US Congress, 7/24/2003 pdf file; Deutsche Presse-Agentur (Hamburg), 8/13/2003; New York Times, 2/24/2004; McDermott, 2005, pp. 73, 278-279]
No Response from CIA - The Germans consider this information “particularly valuable” and ask the CIA to track Alshehhi, but the CIA never responds until after the 9/11 attacks. The CIA decides at the time that this “Marwan” is probably an associate of bin Laden but never track him down. It is not clear why the CIA fails to act, or if they learn his last name before 9/11. [New York Times, 2/24/2004] The Germans monitor other calls between Alshehhi and Zammar, but it isn’t clear if the CIA is also told of these or not (see September 21, 1999).
Could the Number Be Traced? - CIA Director George Tenet will later dismiss the importance of this information in a statement to the 9/11 Congressional Inquiry. He will say that all the CIA had to go on was a first name and an impossible to trace unlisted number. But author Terry McDermott will later comment, “At least a portion of that statement is preposterous. The UAE mobile telephone business was, until 2004, a state monopoly. The UAE number could have been traced in five minutes, according to senior security officials there. The United States never asked.” McDermott will add, “Further, the CIA told the [9/11 Congressional Inquiry] it had a long-standing interest in Zammar that pre-dated these recordings. In other words, the CIA appears to have been investigating the man who recruited the hijackers at the time he was recruiting them.” [McDermott, 2005, pp. 73, 278-279]

Entity Tags: Osama bin Laden, Terry McDermott, Mohammed Haydar Zammar, Germany, Mamoun Darkazanli, Marwan Alshehhi, Al-Qaeda, Central Intelligence Agency, George J. Tenet

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Warning Signs, Foreign Intelligence Warnings, Key Hijacker Events, Key Warnings, Mohammed Haydar Zammar

German intelligence is periodically tapping suspected al-Qaeda operative Mohammed Haydar Zammar’s telephone, and on this day investigators hear Zammar call 9/11 hijacker Marwan Alshehhi. Officials initially claim that the call also mentions hijacker Mohamed Atta, but only his first name. [Daily Telegraph, 11/24/2001; New York Times, 1/18/2003] However, his full name, “Mohamed Atta Al Amir,” is mentioned in this call and in another recorded call. [Frankfurter Allgemeine Zeitung (Frankfurt), 2/2/2003] Alshehhi makes veiled references to plans to travel to Afghanistan. He also hands the phone over to Said Bahaji (another member of the Hamburg cell under investigation at the time), so he can talk to Zammar. [Stern, 8/13/2003] German investigators still do not know Alshehhi’s full name, but they recognize this “Marwan” also called Zammar in January, and they told the CIA about that call. Alshehhi, living in the United Arab Emirates at the time, calls Zammar frequently. German intelligence asks the United Arab Emirates to identify the number and the caller, but the request is not answered. [Der Spiegel (Hamburg), 2/3/2003]

Entity Tags: Mohammed Haydar Zammar, Marwan Alshehhi, Central Intelligence Agency, Said Bahaji, Mohamed Atta, United Arab Emirates

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Mohamed Atta, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Video footage of Said Bahaji’s wedding in October 1999. Clockwise from top left: Ramzi bin al-Shibh, Said Bahaji, Mamoun Darkazanli, Ziad Jarrah, and Marwan Alshehhi.Video footage of Said Bahaji’s wedding in October 1999. Clockwise from top left: Ramzi bin al-Shibh, Said Bahaji, Mamoun Darkazanli, Ziad Jarrah, and Marwan Alshehhi. [Source: Agence France-Presse]Mamoun Darkazanli, along with most of the Hamburg al-Qaeda cell, attends the wedding of Said Bahaji. Bahaji is one of future 9/11 hijacker Mohamed Atta’s roommates and is believed to be a core member of the cell. The wedding takes place at the Al-Quds mosque in Hamburg. A videotape of the wedding will be discovered by German investigators shortly after 9/11, and eventually more than 20 men will be identified from the video. Other attendees include: Ramzi bin al-Shibh, Marwan Alshehhi, Ziad Jarrah, Mounir El Motassadeq, Mohammed Haydar Zammar, and Abdelghani Mzoudi. [New York Times, 9/10/2002; CBS News, 5/7/2003; 9/11 Commission, 7/24/2004, pp. 345, 561; Vanity Fair, 11/2004] Zammar is Bahaji’s best man in the wedding. [New York Times, 6/20/2002]
Speeches and Songs Promise Martyrdom - The video first shows Bahaji’s nuptial ceremony, followed by a series of radical militant speeches. Bin al-Shibh gives a particularly fiery speech. He says: “It is now as if we were in school, in Arabic lessons. At the end, we have a test. Some will pass this test, [others] will not.” He quotes a poem, saying that when Israel flies its flag over Jerusalem, “how can you bear these humiliations?… When the tyrants attack you, you will then be a wave of fire and blood.” The group then sings songs in Arabic celebrating violent holy war and martyrdom. One song includes the lyrics: “Our squads have been revolutionized.… Against the heresy, like a volcano, like hurricane and fire, we follow the voice of your call.… We will be aglow with readiness for action. We will crush the throne of the oppressor.” Another song celebrates martyrdom and promises many virgins in paradise for martyrs. [Vanity Fair, 11/2004]
Video Shows the 9/11 Plot Is in Motion - The New York Times will later report, “The presence of all of these men at the wedding of Mr. Bahaji has led investigators to believe that the plan to attack the United States had essentially been formed by then.” [New York Times, 9/10/2002]

Entity Tags: Marwan Alshehhi, Mohammed Haydar Zammar, Abdelghani Mzoudi, Said Bahaji, Ziad Jarrah, Mounir El Motassadeq, Ramzi bin al-Shibh

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Ziad Jarrah, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

Mohamed Atta filmed in Afghanistan in January 2000.Mohamed Atta filmed in Afghanistan in January 2000. [Source: London Times]Hamburg cell members Mohamed Atta, Marwan Alshehhi, Ziad Jarrah, Ramzi bin al-Shibh, and possibly Said Bahaji travel to Afghanistan via Turkey and Karachi, Pakistan. They travel along a route often used by one of their associates, al-Qaeda recruiter Mohammed Haydar Zammar, to send potential operatives to Afghanistan for training. Turkish intelligence is aware of the route and informed German intelligence of it in 1996, leading to an investigation of Zammar (see 1996). However, it is unclear whether German or Turkish intelligence register the Hamburg cell members’ travel and how and whether they disseminate and act on this information. Jarrah is reportedly noticed by an intelligence service in the United Arab Emirates on his return journey from Afghanistan (see January 30, 2000). [New York Times, 9/10/2002; CBS News, 10/9/2002; 9/11 Commission, 7/24/2004, pp. 167; McDermott, 2005, pp. 89]

Entity Tags: Ziad Jarrah, Turkish intelligence, Said Bahaji, Ramzi bin al-Shibh, Marwan Alshehhi, Mohammed Haydar Zammar, Mohamed Atta

Timeline Tags: Complete 911 Timeline

Category Tags: Alhazmi and Almihdhar, Marwan Alshehhi, Mohamed Atta, Ziad Jarrah, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

Said Bahaji in 1995.Said Bahaji in 1995. [Source: Public domain]German intelligence places two members of the al-Qaeda Hamburg cell, Mounir El Motassadeq and Said Bahaji, on a German watch list. The two men, associates of future 9/11 hijackers Mohamed Atta, Marwan Alshehhi, and Ziad Jarrah, had come to the Germans’ attention because of their association with al-Qaeda recruiter Mohammed Haydar Zammar, who they meet regularly. The watchlisting means that their arrivals and departures to and from Germany will be reported immediately. [Der Spiegel (Hamburg), 2/3/2003; US Congress, 7/24/2003 pdf file] Hamburg cell member Mohammed Haydar Zammar is also placed on a watch list at some point before 9/11 (see Before September 11, 2001). El Motassadeq was first investigated by German authorities in 1998 (see August 29, 1998). Bahaji was the target of a surveillance investigation starting in 1998 as well (see (Late 1998)). Bahaji may have recently traveled to Afghanistan with some associates using a route monitored by European intelligence agencies (see Late November-Early December 1999).
El Motassadeq's Travels Will Be Noticed Three Times - Because he is watchlisted, German intelligence will keep track when El Motassadeq goes to Denmark twice, and when he flies to Istanbul on his way to a training camp in Afghanistan (see May 22, 2000). [New York Times, 1/18/2003]
Importance of Watchlisting - Author Terry McDermott will later comment about the watchlisting of El Motassadeq: “In Germany, this was not a casual event. In order to be placed on such lists, intelligence agencies had to go to great lengths to demonstrate to the Bundestag, the German parliament, that the person under question was of potential danger to the state. Being placed on the list indicated that El Motassadeq had been under investigation for some time. In that he was an integral part of the group that included [Atta], [Ramzi bin al-Shibh], and Alshehhi, this at the least implies that they were being watched too.” [McDermott, 2005, pp. 73, 297]

Entity Tags: Terry McDermott, Said Bahaji, Ramzi bin al-Shibh, Mohammed Haydar Zammar, Mounir El Motassadeq, Marwan Alshehhi, Bundesamt fur Verfassungsschutz, Mohamed Atta

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Mohammed Haydar Zammar, a member of the al-Qaeda cell in Hamburg, Germany, with a few of the future 9/11 hijackers, travels to Afghanistan and meets Osama bin Laden. German intelligence soon learns of the trip, and even gets wiretapped recordings of some of his conversations there. Zammar has been an Islamist militant for a long time, and went to training camps in Afghanistan in 1991 and 1994. Living in Hamburg, he was able to collect about 12,000 Deutsche Marks (approximately $6,000 at the time) for al-Qaeda. In September 2000, he takes the money to Afghanistan. He is able to get a face-to-face meeting with bin Laden, in a training camp near Kandahar. Zammar is still at the training camp in early October, when al-Qaeda bombs the USS Cole in Yemen (see October 12, 2000). He and the others in the camp have a celebration this night. This account is based on a confession Zammar will give to visiting German officials while he is secretly imprisoned in Syria in 2002 (see November 20-22, 2002). It is almost certain Zammar is frequently tortured there. However, Der Spiegel will later claim that German intelligence is able to verify many of the details of this trip on its own, because it receives wiretapped recordings of Zammar’s conversations in Afghanistan from at least one foreign intelligence agency. [Der Spiegel (Hamburg), 11/21/2005]

Entity Tags: Al-Qaeda, Mohammed Haydar Zammar, Osama bin Laden, German intelligence community

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Mohammed Haydar Zammar, a member of the al-Qaeda cell in Hamburg, Germany, is detained in Jordan and then let go. According to a German intelligence official speaking in 2002, Zammar is in transit through Jordan. However, the official will not say where Zammar is going, where he is coming from, or why he is held. Zammar is detained for several days and then deported back to Germany. [Washington Post, 6/12/2002] When Zammar is questioned by German intelligence shortly after 9/11 (see Shortly After September 11-October 27, 2001), he will mention his detention in Jordan. He will say that Jordanian officials “asked me about Afghanistan, the people there, my beliefs, contacts in Jordan, and my party membership. By party membership that meant whether I was a follower of Hezbollah, Hamas, [Islamic] Jihad, or Osama bin Laden.” [New York Times, 1/18/2003] Interestingly, in the beginning of July, CIA Director George Tenet made an urgent request to allied intelligence agencies to arrest anyone on a list of known al-Qaeda operatives (see July 3, 2001). In 1999, US intelligence determined that Zammar was in contact with one of Osama bin Laden’s senior operational coordinators, and the US notes Zammar’s terrorist links on numerous occasions before 9/11 (see Summer 1999), so Zammar would be a likely candidate for Tenet’s list. Zammar also was the target of a German intelligence investigation that started in 1996 and lasted at least three years (see 1996).

Entity Tags: Mohammed Haydar Zammar, Al-Qaeda

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Counterterrorism Action Before 9/11, Mohammed Haydar Zammar

Some al-Qaeda operatives hold a meeting in northern Spain to finalize plans for the 9/11 attacks. Those allegedly present are listed below. The first two operatives listed are definitely present; it is less certain that the others are there:
bullet Future 9/11 hijacker Mohamed Atta. [El Mundo (Madrid), 9/30/2001]
bullet Ramzi bin al-Shibh, an associate of Atta from Hamburg, arrives in Spain on July 9, and stays until July 16. Spanish authorities are notified of his arrival in the country by German intelligence (see (Around July 9, 2001)). [New York Times, 5/1/2002]
bullet Some reports say that 9/11 hijacker Marwan Alshehhi attends, although if he does, he may use a false identity, as US immigration has no records of his departure or return. [El Mundo (Madrid), 9/30/2001; US Department of Justice, 5/20/2002]
bullet The Spanish newspaper La Vanguardia will later report that 9/11 hijackers Waleed and Wail Alshehri meet Atta on July 16. [Associated Press, 9/27/2001] However, there will be no mention of them attending the meeting in some other accounts. For example, their attendance will not be mentioned in the relevant section of the 9/11 Commission Report. [9/11 Commission, 7/24/2004, pp. 243-5]
bullet Amer el-Azizi. [Wall Street Journal, 4/7/2004; Associated Press, 1/23/2005] El-Azizi, who seems to have made preparations for the meeting, is under surveillance at this time, as Spanish authorities are listening in on his phone calls. [Wall Street Journal, 3/19/2004] Calls possibly related to the meeting’s organization were overheard (see Before July 8, 2001). [Los Angeles Times, 4/14/2004; Los Angeles Times, 4/29/2004] Spanish judge Baltasar Garzon will later indict el-Azizi for helping plan 9/11 and say that he assisted the plotters by arranging accommodation for them and acting as a courier. However, US officials will be less certain of his involvement. [Associated Press, 1/23/2005] His arrest shortly after 9/11 will be frustrated by Spanish intelligence (see October 2001 and Shortly After November 21, 2001) and he will go on to be involved in the 2004 Madrid bombings (see Before March 11, 2004 and 7:37-7:42 a.m., March 11, 2004).
bullet Barakat Yarkas, head of an al-Qaeda-linked cell in Spain. [New York Times, 11/20/2001; Los Angeles Times, 1/14/2003]
bullet Mohammed Belfatmi. Belfatmi is an associate of Yarkas, and lives near the hotels where Atta and bin al-Shibh stay. He will flee Europe just before 9/11 with Said Bahaji, a member of the al-Qaeda cell in Hamburg (see September 3-5, 2001). [Los Angeles Times, 1/14/2003; BBC Worldwide Monitoring, 12/2/2004]
bullet Mamoun Darkazanli and Mohammed Haydar Zammar, associates of Atta’s from Germany.
bullet Al Jazeera reporter Tayseer Allouni.
bullet Said Bahaji, a member of the al-Qaeda cell in Hamburg. According to Spanish investigators, Bahaji is with Atta the entire time, and they both stay at the Monica Hotel. [Fouda and Fielding, 2003, pp. 137]
bullet 9/11 mastermind Khalid Shaikh Mohammed (KSM). In 2002, Al Jazeera journalist Yosri Fouda will allegedly interview bin al-Shibh and KSM together before either of them are arrested (see April, June, or August 2002). Neither bin al-Shibh nor KSM will discuss any details of the meeting with Fouda, including who attended. KSM will neither confirm nor deny he was there. However, in a 2003 book, Fouda will claim that, according to Spanish investigators, the initial attendees are Atta, bin al-Shibh, Bahaji, and a fourth man who might be KSM. They are later joined by Alshehhi and two unnamed others. [Fouda and Fielding, 2003, pp. 137]
However, there is a parallel meeting in Granada, in the south of Spain, at this time, and Yarkas, Darkazanli, Zammar, and Allouni may only be at that meeting, and may not meet Atta and bin al-Shibh in person (see July 6, 2001 and Shortly After). [New York Times, 11/20/2001; Los Angeles Times, 1/14/2003] After being captured, bin al-Shibh will deny meeting anyone other than Atta while in Spain. [9/11 Commission, 7/24/2004, pp. 243-5] However, questions will be raised about the quality of information obtained from detainees due to the methods—including torture—used to extract it (see June 16, 2004). The movements of Atta and his associates in Spain are apparently mirrored by those of FBI agents John O’Neill and Mark Rossini (see July 5-16, 2001).

Entity Tags: Mamoun Darkazanli, Wail Alshehri, Marwan Alshehhi, Khalid Shaikh Mohammed, Mohamed Atta, Mohammed Haydar Zammar, Amer el-Azizi, Yosri Fouda, Mohammed Belfatmi, Tayseer Allouni, Ramzi bin al-Shibh, Said Bahaji, Barakat Yarkas

Timeline Tags: Complete 911 Timeline

Category Tags: Marwan Alshehhi, Mohamed Atta, Other 9/11 Hijackers, Key Hijacker Events, Al-Qaeda's Hamburg Cell, Ramzi Bin Al-Shibh, Mohammed Haydar Zammar

Jordanian intelligence (the GID) makes a communications intercept deemed so important that King Abdullah’s men relay it to Washington, probably through the CIA station in Amman. To make doubly sure the message gets through it is passed through an Arab intermediary to a German intelligence agent. The message states that a major attack, code named “The Big Wedding,” is planned inside the US and that aircraft will be used. “When it became clear that the information was embarrassing to Bush administration officials and congressmen who at first denied that there had been any such warnings before September 11, senior Jordanian officials backed away from their earlier confirmations.” The Christian Science Monitor will call the story “confidently authenticated” even though Jordan has backed away from it. [International Herald Tribune, 5/21/2002; Christian Science Monitor, 5/23/2002] It has been reported elsewhere that in July 2001, Jordan warns the US that al-Qaeda is planning an attack inside the US, but it is unknown if this is referring to the same warning or a separate one (see July 2001). In late July 2001, the king of Jordan will offer the US to send two battalions of Jordanian special forces to Afghanistan to eliminate al-Qaeda havens there (see July 24, 2001). Also in July 2001, Jordan briefly detains and interrogates Mohammed Haydar Zammar, who is a member of the Hamburg cell with three of the 9/11 hijackers (see July 2001). Zammar appears to have foreknowledge of the 9/11 plot around this time (see August 2001).

Entity Tags: Central Intelligence Agency, Bush administration (43), Mohammed Haydar Zammar, Jordan General Intelligence Department, Abdullah II ibn al-Hussein

Timeline Tags: Complete 911 Timeline

Category Tags: Warning Signs, Foreign Intelligence Warnings, Mohammed Haydar Zammar

Al-Qaeda Hamburg cell member Mohammed Haydar Zammar appears to have foreknowledge of the 9/11 attacks. Ibrahim Diab, a Lebanese national, has recently been recruited into the cell. Diab makes plans to attend an al-Qaeda training camp in Afghanistan, and Zammar pays for his travel expenses to the camp. Zammar is generally considered to be the main recruiter for the cell. Diab will later claim that Zammar warns him in August 2001 to leave for the camps as soon as possible because something big is about to happen. [Los Angeles Times, 1/30/2003] In 2002, the Los Angeles Times will report: “Zammar’s bluster matched his size. In almost any discussion, his was the loudest voice and most radical view.… In part because of Zammar’s outspokenness, authorities tend to discount his role in the Sept. 11 plot. They concluded no one would entrust information to a braggart like him.” [Los Angeles Times, 9/1/2002] Diab’s confession, made public in 2003, would seem to discredit the idea that Zammar was not trusted with knowledge of the 9/11 plot. And since Zammar is monitored for years before 9/11 (see March 1997-Early 2000), it also raises questions about what German intelligence might have learned from monitoring him. Diab will fly out of Germany on September 10, 2001, just one day before the 9/11 attacks (see September 10, 2001). He will attend an al-Qaeda training camp in Afghanistan, but be arrested in Pakistan in late October and quickly deported back to Germany. He will confess his activities to German intelligence shortly thereafter, and then be released without charge (see October 29, 2001). [Chicago Tribune, 2/23/2003]

Entity Tags: German intelligence community, Ibrahim Diab, Al-Qaeda, Mohammed Haydar Zammar

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Two peripheral members of the al-Qaeda cell in Hamburg, Germany, leave Germany to attend an al-Qaeda training camp in Afghanistan. Ibrahim Diab, a Lebanese national, and Bechim Ademi, a naturalized German, are said to be recent al-Qaeda recruits. They have been attending the Al-Quds mosque in Hamburg also attended by many of the cell members. They will later claim that cell members Ramzi bin al-Shibh and Mohammed Haydar Zammar convinced them to go to Afghanistan for training (and Zammar paid for at least Diab’s ticket (see August 2001). By September 23, 2001, they will have reached a training camp near Kabul and begun weapons training. They will recognize Hamburg cell members Zakariya Essabar and Said Bahaji at the camp. Bahaji left Germany for Afghanistan in early September 2001 (see September 3-5, 2001) and Essabar made a similar trip around the same time (see Late August 2001). Essabar stays with the camp’s leaders and seems to have an important position. Diab and Ademi will be arrested in Pakistan in October 2001 (see October 29, 2001). [Chicago Tribune, 2/23/2003] They will be sent back to Germany in November 2001, after pressure by the German government. They will be interrogated by German officials and reveal the information mentioned above. However, they will be released and not charged with any crime. [Australian Broadcasting Corporation, 7/20/2004] It is unclear if the timing of their departure from Germany one day before the 9/11 attacks shows foreknowledge of the attacks or if it is just a coincidence.

Entity Tags: Zakariya Essabar, Ramzi bin al-Shibh, Ibrahim Diab, Mohammed Haydar Zammar, Al-Qaeda, Bechim Ademi, Said Bahaji

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

After the 9/11 attacks, al-Qaeda Hamburg cell member Mohammed Haydar Zammar is questioned and monitored by German intelligence. The US government pressures the German government to arrest him, but he is not arrested. [New York Times, 1/18/2003] Zammar is a dual German and Syrian citizen. When he plans to travel to Morocco in October, he lacks a passport. So, on October 25, the German government gives him a passport good for one year, allowing him to leave the country. He goes to Morocco two days later. While in Morocco, he is captured and renditioned by US forces and sent to prison in Syria (see October 27-November 2001 and December 2001). Time magazine will report in 2002 that US officials are “angry at Germany for allowing several al-Qaeda suspects to flee in the weeks after 9/11. And some German officials concede they should have arrested Zammar last October.” [Washington Post, 6/12/2002; Time, 7/1/2002]

Entity Tags: Mohammed Haydar Zammar, German intelligence community

Timeline Tags: Complete 911 Timeline

Category Tags: Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

Shortly after 9/11, US investigators are finally able to access prisoner Zacarias Moussaoui’s belongings. A German cell phone number is found in his address book. In Germany, cell phone buyers must present a passport or other official identification, so German police quickly discover that the number belongs to Karl Herweg of Dusseldorf, Germany. Looking at phone records, it is discovered that in the weeks before 9/11, Herweg called Mounir El Motassadeq, Zakariya Essabar, and Mohammed Haydar Zammar, all believed to be members of the al-Qaeda cell in Hamburg, Germany, along with a few of the 9/11 hijackers. Additionally, Herweg called “Mohammed R.,” who remains publicly unknown but is believed to be a key 9/11 suspect. [Chicago Tribune, 2/25/2003] (Note that if this is the correct first name and initial, it could be a reference to Mohammed Rajih, a Yemeni whom German authorities will investigate for terrorist ties at some point before 2005, and who has links to some Hamburg cell figures—see 1998.) [Vidino, 2006, pp. 256] Herweg also called a satellite phone probably used by al-Qaeda leaders in Afghanistan. However, police learn that no one in Dusseldorf has the name “Karl Herweg.” There is a couple living next door to the bogus address with the last name of Herweg, but they have no children and have never heard of any Karl Herweg. Police begin tapping Herweg’s phone. But when no new calls are made or received by early November 2001, the surveillance is discontinued. However, phone records show that at least one call is made with the phone afterwards. Herweg’s actual identity and his relationship to Moussaoui and the Hamburg cell will remain a mystery. In 2003, the Chicago Tribune will call Herweg “one of the most important figures in the continuing mystery that is Sept. 11.” [Chicago Tribune, 2/25/2003]

Entity Tags: Mounir El Motassadeq, Karl Herweg, Mohammed Haydar Zammar, Mohammed Rajih, Zakariya Essabar, Zacarias Moussaoui, Mohammed R.

Timeline Tags: Complete 911 Timeline

Category Tags: 9/11 Investigations, Al-Qaeda's Hamburg Cell, Zacarias Moussaoui, Mohammed Haydar Zammar

With help from the US, Mohammed Haydar Zammar, a German and Syrian citizen believed to be a member of the al-Qaeda Hamburg cell with three of the 9/11 hijackers, is taken in secret to Syria. He had been arrested while visiting Morocco (see October 27-November 2001). When the German government learns of the arrest and transfer, it strongly protests the move. After his arrival in Syria, according to a former fellow prisoner, Zammar is tortured in the Far’ Falastin, or “Palestine Branch,” detention center in Damascus. [Daily Telegraph, 6/20/2002; Washington Post, 12/26/2002; Human Rights Watch, 6/2004] The center is run by military intelligence and reportedly is a place “where many prisoners remain held incommunicado.” [Washington Post, 1/31/2003] His Syrian interrogators are reportedly provided with questions from their US counterparts. [Human Rights Watch, 6/2004] This is alleged by Murhaf Jouejati, Adjunct Professor at George Washington University, who tells the National Commission on Terrorist Attacks Upon the United States that, “Although US officials have not been able to interrogate Zammar, Americans have submitted questions to the Syrians.” [911 Commission, 7/9/2003] In the “Palestine Branch” prison, Zammar is locked up in cell number thirteen. According to Amnesty International, the cell measures 185 cm long, 90 cm wide and less than two meters high. Zammar is said to be about six feet tall and now “skeletal” in appearance. [Amnesty International, 10/8/2004]

Entity Tags: Mohammed Haydar Zammar

Timeline Tags: Torture of US Captives, Complete 911 Timeline

Category Tags: Mohammed Haydar Zammar, Al-Qaeda's Hamburg Cell

Tatex logo.
Tatex logo. [Source: Tatex]On September 10, 2002, German police raid the Tatex Trading company, a small textile business located just outside of Hamburg. According to Newsweek, German authorities has been “keeping a close watch on the company… for years.” Germans begin preparing a case against the company and the US prepares to freeze the company’s assets. But by June 2003, the investigation is closed and no action is taken by the US or Germany. Newsweek will claim that “Some US and German officials suggest that both countries decided not to proceed with legal action against Tatex to avoid antagonizing the government of Syria.” [Deutsche Presse-Agentur (Hamburg), 9/7/2003; Newsweek, 1/18/2004] The New Yorker will claim “Tatex was infiltrated by Syrian intelligence in the eighties; one of its shareholders was Mohammed Majed Said, who ran the Syrian intelligence directorate from 1987 to 1994.” [New Yorker, 7/18/2003] Some believe the Syrians infiltrated the company to spy on extremist Syrian exiles in Hamburg, while others believe Syrians were using the company as a front to illegally acquire high-tech equipment from the West. It is claimed that the investigation into Tatex is dropped because Syria has been cooperative with Germany and the US in other areas. [Newsweek, 1/18/2004] Abdul-Matin Tatari, the Syrian in charge of Tatex, admits that his company had employed Mohammed Haydar Zammar and Mamoun Darkazanli, both of whom have been tied to the Hamburg al-Qaeda cell. Further, the Chicago Tribune claims, “Investigators also say Mohamed Atta himself worked for a time at Tatex, something Tatari vehemently denies. But Tatari admits that one of his sons signed Atta’s petition to establish an Islamic ‘study group’ at Hamburg’s Technical University that served as a rendezvous for the hijackers and their supporters.” Tatari’s son took trips with Mounir El Motassadeq, who also has been tied to the Hamburg cell. Tatari, Zammar, Darkazanli, and Atta all are believed to be members of the Syrian branch of the Muslim Brotherhood, a secret society banned in Egypt. [Chicago Tribune, 11/1/2002]

Entity Tags: Tatex Trading company, Mohammed Majed Said, Mounir El Motassadeq, Mamoun Darkazanli, Germany, Abdul-Matin Tatari, Muslim Brotherhood, Mohammed Haydar Zammar

Timeline Tags: Complete 911 Timeline

Category Tags: Mohamed Atta, Al-Qaeda's Hamburg Cell, Mohammed Haydar Zammar

The 9/11 Congressional Inquiry’s final report concludes that at least six 9/11 hijackers received “substantial assistance” from associates in the US, though it’s “not known to what extent any of these contacts in the United States were aware of the plot.” These hijackers came into contact with at least 14 people who were investigated by the FBI before 9/11, and four of those investigations were active while the hijackers were present. But in June 2002, FBI Director Mueller testified: “While here, the hijackers effectively operated without suspicion, triggering nothing that would have alerted law enforcement and doing nothing that exposed them to domestic coverage. As far as we know, they contacted no known terrorist sympathizers in the United States” (see June 18, 2002). CIA Director Tenet made similar comments at the same time, and another FBI official stated, “[T]here were no contacts with anybody we were looking at inside the United States.” These comments are untrue, because one FBI document from November 2001 uncovered by the Inquiry concludes that the six lead hijackers “maintained a web of contacts both in the United States and abroad. These associates, ranging in degrees of closeness, include friends and associates from universities and flight schools, former roommates, people they knew through mosques and religious activities, and employment contacts. Other contacts provided legal, logistical, or financial assistance, facilitated US entry and flight school enrollment, or were known from [al-Qaeda]-related activities or training.” [US Congress, 7/24/2003 pdf file] The declassified sections of the 9/11 Congressional Inquiry’s final report show the hijackers have contact with:
bullet Mamoun Darkazanli, investigated several times starting in 1993 (see 1993; Late 1998); the CIA makes repeated efforts to turn him into an informer (see December 1999).
bullet Mohammed Haydar Zammar, investigated by Germany since at least 1997 (see 1996), the Germans periodically inform the CIA what they learn.
bullet Osama Basnan, US intelligence is informed of his connections to Islamic militants several times in early 1990s but fails to investigate (see April 1998).
bullet Omar al-Bayoumi, investigated in San Diego from 1998-1999 (see September 1998-July 1999).
bullet Anwar al-Awlaki, investigated in San Diego from 1999-2000 (see June 1999-March 2000).
bullet Osama “Sam” Mustafa, owner of a San Diego gas station, and investigated beginning in 1991 (see Autumn 2000).
bullet Ed Salamah, manager of the same gas station, and an uncooperative witness in 2000 (see Autumn 2000).
bullet An unnamed friend of Hani Hanjour, whom the FBI tries to investigate in 2001.
bullet An unnamed associate of Marwan Alshehhi, investigated beginning in 1999.
bullet Hijackers Nawaf Alhazmi and Khalid Almihdhar, who had contact with Basnan, al-Bayoumi, al-Awlaki, Mustafa, and Salamah, “maintained a number of other contacts in the local Islamic community during their time in San Diego, some of whom were also known to the FBI through counterterrorist inquiries and investigations,” but details of these individuals and possible others are still classified. [US Congress, 7/24/2003 pdf file] None of the above people have been arrested or even publicly charged with any crime associated with terrorism, although Zammar is in prison in Syria.

Entity Tags: Robert S. Mueller III, Osama Basnan, Osama (“Sam”) Mustafa, Nawaf Alhazmi, Omar al-Bayoumi, Mamoun Darkazanli, Mohammed Haydar Zammar, Ed Salamah, Central Intelligence Agency, 9/11 Congressional Inquiry, Anwar al-Awlaki, George J. Tenet, Khalid Almihdhar, Federal Bureau of Investigation

Timeline Tags: Complete 911 Timeline

Category Tags: 9/11 Investigations, 9/11 Congressional Inquiry, Bayoumi and Basnan Saudi Connection, Possible Hijacker Associates in US, Anwar Al-Awlaki, Mohammed Haydar Zammar

Mohammed Haydar Zammar, an alleged member of al-Qaeda’s Hamburg, Germany, cell with a few of the 9/11 hijackers, is discovered in Syrian custody. It had been known that Zammar was arrested in late 2001 in Morocco and renditioned to Syria for likely torture and interrogation (see October 27-November 2001 and December 2001). However, his imprisonment had never been officially admitted by the Syrian government and his exact location was unknown. But this month, a European Union official monitoring trials in Damascus, Syria, sees Zammar in a state security court and notifies the German Embassy. According to Guel Pinar, Zammar’s lawyer in Germany, if it had not been for the chance encounter, Zammar might have remained out of sight forever. “No one in the world would have known,” she will say. [Washington Post, 2/5/2007] Zammar has been secretly held without trial or charge for five years, but shortly after the sighting, he will be tried and sentenced (see February 11, 2007).

Entity Tags: Mohammed Haydar Zammar, Guel Pinar

Timeline Tags: Torture of US Captives, Complete 911 Timeline

Category Tags: Mohammed Haydar Zammar, Al-Qaeda's Hamburg Cell, 9/11 Related Criminal Proceedings

Mohammed Haydar Zammar in 2001.Mohammed Haydar Zammar in 2001. [Source: Knut Muller / Der Spiegel]Mohammed Haydar Zammar, an alleged member of al-Qaeda’s Hamburg, Germany, cell with a few of the 9/11 hijackers, is given a 12-year prison sentence in Syria. It had been known that Zammar was arrested in late 2001 in Morocco and renditioned to Syria for likely torture and interrogation (see October 27-November 2001 and December 2001), but his exact location was not confirmed until a European Union official spotted him in Syrian custody in October 2006 (see October 2006). It has been reported that Zammar had extensive al-Qaeda connections and a probable role in the 9/11 plot, but he was not charged for any of that, and instead was accused of being a member of the Muslim Brotherhood. This group is banned in Syria, and membership in it is a crime that is punishable by death. The court initially sentences Zammar to life imprisonment but commutes his sentence to 12 years. Der Spiegel comments, “Zammar’s German citizenship and the fact that German diplomats were closely monitoring the trial may have gone some way toward saving him from the gallows.” [Der Spiegel (Hamburg), 2/12/2007]

Entity Tags: Mohammed Haydar Zammar

Timeline Tags: Torture of US Captives, Complete 911 Timeline

Category Tags: Mohammed Haydar Zammar, Al-Qaeda's Hamburg Cell, 9/11 Related Criminal Proceedings

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Key Events

Key Day of 9/11 Events (97)Key Hijacker Events (142)Key Warnings (33)

Day of 9/11

All Day of 9/11 Events (1200)Flight AA 11 (145)Flight UA 175 (94)Flight AA 77 (147)Flight UA 93 (230)George Bush (116)Dick Cheney (53)Donald Rumsfeld (35)Richard Clarke (33)Pentagon (111)World Trade Center (83)Shanksville, Pennsylvania (23)Alleged Passenger Phone Calls (64)Training Exercises (56)

The Alleged 9/11 Hijackers

Alhazmi and Almihdhar (328)Marwan Alshehhi (124)Mohamed Atta (188)Hani Hanjour (69)Ziad Jarrah (66)Other 9/11 Hijackers (138)Possible Hijacker Associates in US (33)Alleged Hijackers' Flight Training (68)Hijacker Contact w Government in US (34)Possible 9/11 Hijacker Funding (9)HIjacker Visas and Immigration (6)

Alhazmi and Almihdhar: Specific Cases

Bayoumi and Basnan Saudi Connection (47)CIA Hiding Alhazmi & Almihdhar (116)Search for Alhazmi/ Almihdhar in US (39)

Projects and Programs

Al-Qaeda Malaysia Summit (165)Able Danger (59)Phoenix Memo (27)Yemen Hub (70)

Before 9/11

Warning Signs (269)Insider Trading/ Foreknowledge (47)Pakistani ISI Links to 9/11 (59)Alleged Israeli Spy Ring (23)Counterterrorism Policy/Politics (189)Counterterrorism Action Before 9/11 (22)Military Exercises (62)1993 WTC Bombing (18)Other Pre-9/11 Events (38)

Warning Signs: Specific Cases

Foreign Intelligence Warnings (32)Bush's Aug. 6, 2001 PDB (40)Presidential Level Warnings (29)

The Post-9/11 World

9/11 Investigations (542)9/11 Related Criminal Proceedings (14)9/11 Denials (28)US Government and 9/11 Criticism (45)9/11 Related Lawsuits (22)Media (35)Other Events (73)

Investigations: Specific Cases

9/11 Commission (185)Role of Philip Zelikow (82)9/11 Congressional Inquiry (29)CIA OIG 9/11 Report (16)FBI 9/11 Investigation (93)WTC Investigation (111)

Other Al-Qaeda-Linked Figures

Anwar Al-Awlaki (15)Khalid Shaikh Mohammed (105)Mohammed Haydar Zammar (32)Nabil Al-Marabh (29)Osama bin Laden (9)Ramzi Bin Al-Shibh (65)Zacarias Moussaoui (152)Al-Qaeda's Hamburg Cell (111)
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