Butch Cassidy Butch Cassidy Robert Leroy Parker (April 13, 1866 – November 7, 1908), better known as Butch Cassidy, was a notorious American train robber and bank robber, and the leader of a gang of criminal outlaws known as the "Wild Bunch" in the American Old West. After participating in criminal activity in the United States for more than a decade at the end of the 19th century, the pressures of being pursued by law enforcement, notably by the Pinkerton detective agency, forced Parker to flee the country with an accomplice, Harry Alonzo Longabaugh, known as the "Sundance Kid", and Longabaugh's girlfriend
Butch Cassidy them. Cassidy's first bank robbery took place on June 24, 1889, when he, Warner and two of the McCarty brothers robbed the San Miguel Valley Bank in Telluride, stealing approximately $21,000 (), after which they fled to the Robbers Roost, a remote hideout in southeastern Utah. In 1890, Cassidy purchased a ranch on the outskirts of Dubois, Wyoming. This location is across the state from the notorious Hole-in-the-Wall, a natural geological formation and a popular hideout for outlaw gangs including Cassidy's during the era, so it is possible that Cassidy's ranching, at which he was never economically successful, was a