Robert Hanssen, an FBI agent who spied for Russia and the former Soviet Union, was found dead in his prison cell Monday, according to a release obtained by CBS News.
Hanssen was found unresponsive at the federal correctional complex in Florence, Colo., pronounced dead after life-saving measures were attempted, according to the release from Kristie Breshears, the Federal Bureau of Prisons (FBOP) director of communications.
“Staff requested emergency medical services and life-saving efforts continued. The inmate was subsequently pronounced dead by outside emergency medical personnel,” the release reads.