Former FBI Agent and Notorious Spy Robert Hanssen Found Dead in Prison Cell

Robert Hanssen, a former FBI agent who spied for Russia for over 20 years, was found dead in his prison cell on Monday.

He was 79 years old and had been sentenced to life in prison in 2002 after pleading guilty to spying for the Soviet Union and later Russia.

Hanssen was considered the most damaging spy in the FBI's history and was compensated with over $1.4 million in cash, bank funds, and diamonds.

He was arrested in 2001 after being identified as the spy in the FBI's ranks.