Jimmy Hoffa was an American labor union leader who disappeared on July 30, 1975, and was declared legally dead in 1982. Despite numerous investigations and searches, his remains have never been found, and his disappearance remains one of the most famous unsolved cases in American history. It is generally accepted that he was murdered by the Mafia. The circumstances of his disappearance continue to stir debate, and many theories have emerged about what happened to him. Some of the most popular theories include:

• Hoffa was killed on the orders of alleged New Jersey mob figure Anthony “Tony Pro” Provenzano. His body was “ground up in little pieces, shipped to Florida and thrown into a swamp”.
• Hoffa was abducted by federal marshals or federal agents, driven to a nearby airport, and dropped out of a plane, possibly into one of the Great Lakes that surround Michigan.
• Hoffa was killed and his body was buried beneath a swimming pool in Oakland County’s Hampton Township.
• Hoffa’s body was delivered to a Jersey City landfill in 1975, placed in a car that was crushed and shipped to Japan as scrap metal.

Despite these theories, none of them have been proven, and the mystery of Jimmy Hoffas disappearance remains unsolved.