Talking Points Memo says that the FBI is closing the case about the Anthrax mailing and blaming Dr. Ivins for the attacks.

I’d mentioned earlier that I was skeptical about his guilt. I’m still a little skeptical.

Authorities said that in the days before the mailings, Ivins had logged unusual hours alone in his lab at the Army Medical Research Institute of Infectious Diseases at Fort Detrick, Md. They also say he threw investigators off his trail by supplying false leads as he ostensibly tried to help them find the killer.

As the FBI closed in on Ivins last summer, the 62-year-old microbiologist took a fatal overdose of Tylenol, dying on July 29, 2008. After Ivins’ suicide, FBI Director Robert Mueller said the investigation found Ivins was the culprit, and prosecutors said they were confident he acted alone.