Historian Mike Bell has studied Wyoming’s outlaws for several decades and has written several books about Butch Cassidy and the gang of horse thieves who roamed the Owl Creek region in the 1880s.

Part of the adventure of researching, according to Bell, is proving or disproving a story. That's what led Bell to uncovering the truth of Robert Parker, a man who was blown up in 1900.

Bell had come across a Facebook post by David Nickle on the "Butch Cassidy and the Sundance Kid" group page that claimed that the Robert Parker who was blown up by mishandling of dynamite in 1900, was in reality the outlaw Butch Cassidy.

Then just a year ago, the same rumor showed up in a YouTube video titled “Don’t Boil The Dynamite,” claiming that the producers had discovered a story with the potential of chan

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