Former FBI agency Robert Hanssen, who spied on behalf of Russia for over 20 years, was found dead in his prison cell in the US. Robert Hanssen Dies: Former FBI Agent Who Spied for Russia for Over 20 Years, Found Dead in US Prison Cell.
Hanssen, who was sentenced to life in prison for espionage in 2002, had received over $1.4 million in cash, diamonds, and funds deposited into Russian accounts