Eric O’Neill took to Twitter, saying he regrets not asking Robert Hanssen — the former FBI agent sentenced to life in prison in 2002 for spying on America for Russia — why he betrayed his ...

Robert Hanssen, a former FBI agent who became one of the most notorious spies in US history, died in federal prison Monday morning. He was 79. Hanssen was found unresponsive in his cell at the ...

Robert Philip Hanssen, who received payments of $1.4 million in cash and diamonds for the information he gave the Soviet Union and Russia, has died, the Federal Bureau of Prisons announced Monday.

Robert Hanssen, a former FBI agent who was one of the most damaging spies in American history, was found dead in his prison cell Monday morning, according to the Bureau of Prisons. Hanssen ...

Robert Philip Hanssen, a former FBI agent who received more than $1.4 million in cash and diamonds for committing espionage on behalf of Moscow, has died in prison, the Federal Bureau of Prisons ...

By Peter Baker Peter Baker reported from Washington. He was a correspondent for The Washington Post in Moscow when Robert Hanssen was arrested in 2001 and covered the diplomatic rupture that followed.

Hanssen, 79, was found unresponsive in his prison cell, officials said. One of America's most notorious spies, Robert Hanssen, was found dead on Monday at a maximum security prison in Colorado ...

On June 5, FBI agent Robert Hanssen, 79, sentenced to life in 2002 for spying for the Soviet Union and Russia, died in his cell at a federal prison in Colorado. Those unfamiliar with the case ...