US anthrax scientist Bruce E Ivins, who committed suicide fearing arrest over anthrax deaths of 2001, was actually a sociopathic, homicidal killer, psychiatrists have said.
Therapist Jean C. Duley had testified on July 24 that Bruce E. Ivins described a "detailed homicidal plan" to kill his co-workers after learning he was going to be indicted on capital murder charges, CNN reports.
Sources told the TV channel that prosecutors might indeed have sought the death penalty against Ivins.
Five people died and dozens more became ill after letters containing the anthrax bacteria were sent to congressional offices and media organizations soon after the September 11, 2001, terrorist attacks.
Duley testified that Ivins had been diagnosed as a "sociopathic, homicidal killer" by several top psychiatrists.
During a recent group therapy session, Ivins said he had bought a bullet-proof vest and obtained a gun after learning of the pending charges, Duley said.
"He was going to go out in a blaze of glory," testified Duley, who said that Ivins also threatened her.
Frederick County District Judge W. Milnor Roberts issued a temporary protective order on July 24, ordering Ivins to not to contact Duley and to stay away from her workplace.
He was due in court Thursday.
Two sources familiar with the investigation said that on Tuesday, the day Ivins died, lawyers were to meet and discuss a possible plea deal for him.
Ivins worked for decades in the U.S. Army Medical Institute of Infectious Diseases biodefense lab at Fort Detrick, Maryland. He was trying to develop a stronger vaccine against the deadly anthrax toxin.