Butch Cassidy and the Sundance Kid had a knack for trains. Between 1896 and the early 1900s the duo, along with at least seven other members of the "Robbers Roost" gang, robbed dozens of trains including a June 2, 1899 hold-up in which thousands of dollars were taken from a Union Pacific railcar's safe. With authorities hot on their heels, Cassidy and Sundance (real names: Robert LeRoy Parker and Harry Longabaugh) escaped to South America and either died in a Bolivia shoot-out in 1909, a Uruguay shoot-out in 1911 or not at all one version holds that they escaped to Alaska (or perhaps Nevada or Wyoming) and lived peacefully in obscurity until the 1930s. The Bolivia story is likely the most accurate; detectives from the Pinkerton Agency, charged with tracking down the outlaws, considered it the truth.
Top 10 Crime Duos
Bankrobbers Bonnie and Clyde met their end 75 years ago May 23, ambushed by police officers outside Gibsland, Louisiana and shot to death. TIME takes a look at more of history's most notorious crime duos.