Nearly forty years after Jimmy Hoffa vanished from the face of the earth ? his disappearance still remains one of the biggest mysteries in crime history. At his zenith, Hoffa was reputed to be the most powerful figure in North America. The labor boss was never seen again after July 30, 1975 marking one of the most unexplainable cold cases ever. In his new book titled Vanished: The Life and Disappearance of Jimmy Hoffa, freelance journalist William Hryb attempts to unravel the five-decade long riddle.