Locked in a glass case at the FBI Headquarters in Washington, D.C. is a shabby brown chauffeur's cap. It was left at the scene of one of the most notorious heists in U.S. history. Who wore this hat, and was he ever caught? 

Among the weapons and military gear at the 4th Infantry Division Museum in Fort Carson, Colorado sits a block of polystyrene foam. What role did this humble relic play in one of the biggest manhunts in American military history? 

The Madison Valley History Museum in Ennis, Montana houses the taxidermied remains of a long dead and vicious creature. According to legend, it once stalked and terrorized a community of settlers. So what is the real story behind this mysterious beast?

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