A cancer-stricken man on his deathbed claims he watched men bury Jimmy Hoffa's body in a driveway in suburban Detroit a just days after the union boss's disappearance in 1975. The anonymous tipster reportedly kept the dark secret for 37 years because he was terrified that the mob, who whoever killed Hoffa, would come after him. The FBI and most observers are skeptical that the Teamsters leader's remains are below the concrete slab in Roseville, Michigan, however one journalist who has talked to the dying man says he is no fraud -- the informant believes his own story. Where in the world? Jimmy Hoffa, pictured in 1966, was last seen at a suburban Detroit restaurant in 1975. His disappearance remains one of great mysteries in American history
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Teamsters boss last seen at suburban Detroit restaurant on July 30, 1975
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Man in Roseville, Michigan, claims he witnessed Hoffa's burial
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Cops say the homeowner, has lived at the home for a little more than a decade, and is being cooperative with their investigation
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FBI remains skeptical over the tip
The search has continued under a backyard pool north of Detroit in 2003, under the floor of a Detroit home in 2004 and at a horse farm northwest of @placeholder in 2006.