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Published on Jul 16, 2014
Watch the full-length episode at http://video.pbs.org/video/2365293228... (US Only) Notorious teamster boss Jimmy Hoffa disappeared without a trace in 1975. Was he murdered? If so, who pulled the trigger and why? Find out on HISTORY DETECTIVES SPECIAL INVESTIGATIONS, airing July 22, 2014 at 9/8c on PBS!