Butch Cassidy
Born Robert LeRoy Parker, Butch Cassidy (1866-1908) took his last name from his friend and mentor, Mike Cassidy, who taught him how to ride and shoot when he was just a kid. In 1896 he formed the Wild Bunch, a group that included some of the most infamous outlaws of the Old West, including Butch's partner, Harry Longabaugh, aka the Sundance Kid. After several robberies, Butch and Sundance fled to Bolivia. It is thought that he died there, but the facts around his death are not really known.