Robert Hanssen

Robert Philip Hanssen (April 18, 1944 – June 5, 2023) was a former Federal Bureau of Investigation (FBI) agent who spied for the Soviet Union and Russia between 1979 to 2001.

He sold the Soviets and Russians many secrets, such as the names of Soviets secretly working for the U.S., American nuclear strategies, and technology. The Department of Justice called his spying "possibly the worst intelligence disaster in U.S. history".A Review of FBI Security Programs  (Webster Report) (March 2002). Commission for Review of FBI Security Programs, United States Department of Justice.

He served 15 consecutive life sentences at ADX Florence, a federal supermax prison near Florence, Colorado. On June 5, 2023, Hanssen was found dead in his jail cell, aged 79. The cause of death was colon cancer.

References

Category:1944 births
Category:2023 deaths
Category:American prisoners sentenced to life imprisonment
Category:FBI people
Category:Criminals from Chicago
Category:American spies for the Soviet Union
Category:People who died in prison custody in the United States
Category:Deaths from colorectal cancer