Jimmy Hoffa is buried underneath GM headquarters, Jimmy Hoffa's former driver-turned-police informant Marvin Elkind claims Hoffa is still in Detroit, buried underneath General Motors' headquarters.

Elkind co-wrote the book "The Weasel: A Double Life in the Mob".

In it, he claims he learned where Hoffa was buried during a Teamsters conference in Detroit in 1985.

Hoffa rose to fame as the Teamsters leader, but was booted from power after being convicted of jury tampering, conspiracy and mail and wire fraud.

Hoffa disappeared in 1975 while reportedly on his way to meet two mafia figures.

He was declared legally dead in 1982, but his body has never been found.

CNN