Published: Jun 05, 2023, 20:10 IST | Updated: Jun 05, 2023, 20:10 IST
Former FBI double agent and Soviet spy Robert Hanssen was found dead in his prison cell on Monday. The FBI in the past has gone on record to call Hanssen, the most damaging spy in the bureau's history prison authorities confirmed that the spy was found unresponsive in his cell on Monday.