A simple review of the files screams it was the guy...
My reading of the evidence was that it was weak and relied upon coincidence and circumstance. They seemed to have much less evidence against Ivins than they had against Hatfill - the previous one they tried to fit up.
There is not any evidence, I repeat any, that he did it.
This is the same FBI team that blame two other scientists for the crime as well before they had to pay out multi-million dollar settlements for ruining their lives.
“Scientist Is Paid Millions by U.S. in Anthrax Suit
The Justice Department announced Friday that it would pay $4.6 million to settle a lawsuit filed by Steven J. Hatfill, a former Army biodefense researcher intensively investigated as a “person of interest” in the deadly anthrax letters of 2001.”
Nope. Ivins worked with wet anthrax spores, not dry. To give large numbers of people inhalation anthrax, you need dry spores...and to get dry spores you need a spray dryer.
Ivins did not have access to a spray dryer. What he could do was create wet anthrax spores, but those cause cutaneous anthrax, not inhalation anthrax.
Those infected from the letters were done so by dry anthrax spores.