Federal prosecutors say the anthrax case is being closed after suspect killed himself, but critics say questions remain.
Federal court documents outlined the government's case against U.S. Army scientist Dr. Bruce Ivins-- casting him as a paranoid anthrax expert who faced pressure over a stalled anthrax vaccine project.Deborah Lutterbeck reports.SOUNDBITES: Jeffrey Taylor,US Attorney for the District of Colombia
Former Federal Prosecutor Stephen Ryan, McDermott, Will & Emery
