He joined the FBI in 1979 and In 2001, Robert Hanssen was sentenced to 15 consecutive life sentences in federal prison (without parole; there’s no parole in the federal prison system). He’s currently “living” the rest of his days in at ADD Florence, a supermax prison near Florence, Colorado. ADX Florence is basically Arkham Asylum. Built for supervillains.
Isn't this the guy who got caught because he went on a spending spree?
Nah that was Aldrich Ames with the CIA, similar situation though (lesson: never spend beyond your means/salary if you're taking money off the top or at least always buy in physical cash)