Watch the two-hour special, "Riddle: The Search for James R. Hoffa," on Fox Nation. Fox Nation is a streaming subscription service you can access from your phone, computer and select TV devices. We've created a members-only destination for Fox News' most passionate and loyal fans featuring exclusive content, exclusive experiences and exclusive access.

In this episode you'll hear from David Ashenfelter. David was a venerable reporter for The Detroit Free Press who covered Jimmy Hoffa and his disappearance for decades. He earned two Pulitzer prizes. The epitome of an investigative reporter if there ever was one.

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