ROANOKE, Va. — A Virginia inmate who sent blood-smeared, threatening letters to courthouses will spend another 10 years and five months behind bars.

Prosecutors say the letters sent by 24-year-old Richard Crowder to courthouses in Roanoke and Roanoke County threatened President Barack Obama, judges and a federal agent. The letters also claimed Crowder had hepatitis C and AIDs.

Crowder was an inmate at Red Onion State Prison when he sent the letters in 2010.

He was convicted last November. The Roanoke Times reports that he was sentenced Wednesday in U.S. District Court in Abingdon.