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Profile: James J. Cadigan

James J. Cadigan was a participant or observer in the following events:

Prosecutors in the trial of accused Oklahoma City bombing conspirator Terry Nichols (see 8:35 a.m. - 9:02 a.m. April 19, 1995 and November 3, 1997) link Nichols and his alleged co-conspirator, convicted bomber Timothy McVeigh (see June 2, 1997 and June 11-13, 1997), to the October 1994 theft of explosive materials from a Kansas quarry (see October 3, 1994). The prosecution claims that Nichols and McVeigh used those materials in the construction of the bomb that devastated the Murrah Federal Building and killed 168 people. A blaster at the Martin Marietta Aggregates quarry near Marion, Kansas, Allen E. Radtke, testifies that on October 3, he discovered that someone had stolen 1,200 to 1,400 electric blasting caps, 75 60-foot lengths of Primadet non-electric blasting caps, and 150 sticks of Tovex explosive from two sheds. On October 4, Radtke says, he found that someone had drilled open the padlock on the back door of a third shed. FBI analyst James J. Cadigan testifies that he had compared the marks left on the padlock with a quarter-inch drill bit found at Nichols’s home (see 3:15 p.m. and After, April 21-22, 1995). Though the marks on the padlock seem to match marks made by Nichols’s drill bit, Judge Richard P. Matsch instructs the jury to disregard Cadigan’s conclusions to that effect. Nichols’s lawyer Michael Tigar, who has called such analysis “junk science” (see November 3, 1997), says that a thousand drill bits made by the same machine might produce the same marks. [New York Times, 11/8/1997]

Entity Tags: Michael E. Tigar, Allen E. Radtke, Richard P. Matsch, James J. Cadigan, Timothy James McVeigh, Terry Lynn Nichols

Timeline Tags: US Domestic Terrorism

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