John Crosby, a former resident of Maine, pleaded guilty in federal court in Portland on Friday to charges of sending threatening communications in interstate commerce and possession of a firearm by a felon.
Crosby was not allowed to have a weapon because of previous convictions for robbery and heroin possession. He's faces a maximum sentence of 10 years in prison and a $250,000 fine.
The text of the emails indicates that the death threats were anti-Semitic in nature. Check out the FBI affidavit here.