Jimmy Hoffa's disappearance in 1975 is one of the biggest unsolved mysteries in American history, and authorities say it's unlikely that any definitive answers will emerge nearly five decades later.
Jimmy Hoffa was declared dead in 1982 after disappearing in 1975, a case that remains a prominent U.S. missing-persons ...
His full name is James Riddle Hoffa. But everyone knew him as Jimmy. A labor leader who thrived in the rough and tumble world of union organizing, of contracts, and picket lines ... and of standing up ...