Hoffa to exploit the union's pension fund. Having no paper with them, the plans are sketched on the back of a hunting license. Subsequently, Hoffa is betrayed by a junior associate, Peter Connelly, who testifies at Hoffa's trial. The critical evidence against Hoffa is the hunting license on which the plans to raid the Teamster's pension fund were written. Hoffa surrenders to federal officials and serves time in a Pennsylvania federal prison while Connelly's uncle, Frank Fitzsimmons, takes over as Teamsters boss. Ciaro, also convicted and imprisoned, is freed and immediately begins working for Hoffa's release. D'Allesandro suggests that the Teamsters
Jimmy Hoffa caused by the 1975 disappearance of her husband, because her health had declined steadily since then. She is entombed in Michigan. In 1989, Kenneth Walton, the head of the FBI's Detroit office, told "The Detroit News" that he knew what happened to Hoffa. "I'm comfortable I know who did it, but it's never going to be prosecuted because ... we would have to divulge informants, confidential sources." In 2001, the FBI matched DNA from Hoffa's hair—taken from a brush—with a strand of hair found in a 1975 Mercury Marquis Brougham driven by longtime friend Charles "Chuckie" O'Brien on July 30,