https://www.mysterywire.com/ Officially, the disappearance of Teamsters leader Jimmy Hoffa in 1975 has never been solved. The FBI believes Hoffa was murdered by mobsters, but who was the triggerman? Investigative reporter George Knapp reports the story of a man who says he’s the one who pulled the trigger, even though he and Hoffa were friends. Originally aired on Nov. 14, 2006, on KLAS TV in Las Vegas. Second of 3 Parts. #MysteryWire