The Case Against Ivins

The FBI says it also discovered that over the past 24 years, Ivins was "known to have used at least two Post Office Boxes to communicate with members of the public, to pursue obsessions and possibly engage in the unauthorized use of another person's name." The Bureau said its investigation also demonstrated that the post office where Ivins maintained his post office boxes was a branch of the main post office in Frederick, Md., which had carried a specific kind of envelope used in the attacker's deadly anthrax shipments.

At Wednesday's press conference, Jeff Taylor, the chief federal prosecutor for the District of Columbia, said that last week, before Ivins's suicide, the government had scheduled a meeting with Ivins's lawyers to present an outline of the evidence they had collected against him. But even though Ivins was under what officials described as 24-hour surveillance, he still managed to hide himself away and acquire enough deadly drugs to commit suicide.

Terror Watch appears weekly on Newsweek.com

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