Robert LeRoy Parker, better known as Butch Cassidy, was a notorious American train robber, bank robber, and leader of the Wild Bunch Gang in the American Old West. After pursuing a career in crime for several years in the United States, the pressures of being pursued, notably by the Pinkerton Detective Agency, forced him to flee, first to Argentina and then to Bolivia, where he was allegedly killed in a shootout in November 1908.
BILLY THE KID (William H. Bonney, William Henry McCarty, 1859-1881). American gunman and frontier outlaw. Legend claims he killed 21 men, but most likely it was somewhere between 4 to 9. Relatively unknown during his brief lifetime, his status grew to legendary proportions after his death at age 21. The Kid was killed by lawman Pat Garrett.