The Most Dangerous Manhunt In Grand Canyon History | The FBI Files

Season 3, Episode 15: In 1990, a fisherman in the Burns Cut River made a discovery that would launch one of the most intense manhunts in FBI history. When Sam Lee McCulla was found dismembered, Detective Armando Mayoya followed a trail of bone collagen and ballistics to brothers Steven Horning and Danny Ray Horning. While one brother talked, the other fled. After a violent bank robbery in Winslow, Arizona, Danny Ray Horning was sentenced to four life terms—but he wasn't finished.

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