on how to do it. >> reporter: with such specific threats, duley, who had been seeing ivans for six months says she called the police and took him to the hospital. he was transferred to a baltimore psychiatric hospital. days after being released ivans killed himself. when you heard about it, what did you think? >> i was really angry. >> reporter: why? >> because i told him not to let him go. i knew he was going to kill himself. he killed himself with tylenol. i said, he planned that. he knew that. he knew exactly how much to take. when to take it. >> reporter: duley sat down with us this weekdays of the fbi officially closed the anthrax cases. the conclusion, that ivans was the anthrax killer. duley can speak more freely about her client's mental state. she maintains it wasn't his addiction to vodka or pills but root problem goes back to his