the mud , but at least it will be over , '' the e-mail reads . `` Finally ! I should have it TOTALLY nailed down within the month . I should have been a private eye !!!! '' The documents -- which the Justice Department says are the last Ivins-related search warrants that had yet to be released to the public -- also contain new details about allegations that Ivins wanted to kill his co-workers . The details are in an account of a July 9 group therapy session during which Ivins allegedly said he was a suspect in the anthrax investigation . According to an FBI agent 's account , Ivins was `` angry at the investigators , the government , and the system in general . '' `` He said he was not going to face the death penalty , but instead had a plan to kill co-workers and other individuals who wronged him , '' the account reads . `` He said he had a bullet-proof vest , and a list of co-workers , and added he was going to obtain a Glock firearm from his son within the next day , because federal agents are
WASHINGTON -LRB- CNN -RRB- -- The man who authorities allege carried out the 2001 anthrax mailings that killed five people sent himself an e-mail saying he knew the attacker 's identity , according to court documents released Wednesday . Former biodefense researcher Bruce Ivins killed himself in July , authorities say . Bruce Ivins , who authorities say killed himself in July as the Justice Department prepared to charge him in the anthrax case , is alleged to have sent the e-mail to himself last September . An FBI agent quotes the message in an affidavit accompanying applications for search warrants for Ivins ' e-mail accounts . `` Yes ! Yes ! Yes !!!!!!! I finally know who mailed the anthrax letters in the fall of 2001 . I 've pieced it together ! Now we can finally get this over and done with , '' the e-mail reads . In it , the former biodefense researcher says he plans on turning information over to his lawyer and that his lawyer would then give it to authorities . The e-mail does not say who Ivins believed was responsible . `` I 'm not looking forward to everybody getting dragged through