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Profile: Frederic Dexter
Frederic Dexter was a participant or observer in the following events:
FBI agent Frederic Dexter and his colleague Jay Matthews begin the enormous task of sorting through telephone data concerning the Oklahoma City bombing (see 8:35 a.m. - 9:02 a.m. April 19, 1995), working primarily out of the FBI’s Fort Riley, Kansas, command center. Over the next 15 months, they search 156 million phone records. They are joined by agents looking through some 600,000 motel registration cards from the area. [Serrano, 1998, pp. 222]
Prosecutors in the Timothy McVeigh bombing trial (see 8:35 a.m. - 9:02 a.m. April 19, 1995, August 10, 1995, and April 24, 1997) bring on a number of witnesses that show McVeigh was the telephone caller who reserved the Ryder rental truck that carried the Oklahoma City bomb (see April 15, 1995). Both McVeigh and accused co-conspirator Terry Nichols used a telephone debit cart issued under the alias “Daryl Bridges” by The Spotlight, a racist newsletter published by the far-right Liberty Lobby (see August 1994). A telephone debit card is pre-paid and makes it difficult to put together a record of billed calls. Twenty-nine representatives from telephone companies explain how they gathered records related to the case. Frederic Dexter, a computer expert from the FBI who worked on telephone reconstructions on the Unabomber (see April 3, 1996) and World Trade Center bombing (see February 26, 1993 and February 7, 1995) cases, explains how his team had reassembled the records for 647 calls billed to the Daryl Bridges card, sifting through tens of thousands of computerized bits of data. A representative from the long-distance company Sprint tells of a call to the debit card’s toll-free number on the morning of April 14, 1995 from a pay phone in Junction City, Kansas, the same morning that someone called a Junction City truck rental office to reserve the Ryder truck that carried the bomb (see April 13, 1995). At the time, prosecutors say, McVeigh was a block away, buying a car, and had stepped out for a few minutes. The call was made at 9:54 a.m.; phone records show that only two calls came into the rental office that day, one at 9:54 a.m. and the other in the afternoon. The technical testimony is broken by the emotional testimony of a survivor of the blast, former Army Captain Lawrence Martin, who was severely injured when the bomb went off. Martin breaks down in tears while recalling the last moments of life of his friends and colleagues in the Murrah Building. [New York Times, 5/8/1997]
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