Butch Cassidy and the Sundance Kid appear to have been surrounded in Vicente by a company of soldiers and were most likely killed here.  The cemetery here is said to contain their unmarked graves but no forensics has verified this.  

Sundance Kid and Place before they headed to South America

Harry Alonzo Longabaugh (1867 – possibly November 6, 1908), better known as the Sundance Kid, was an outlaw and member of Butch Cassidy's Wild Bunch, in the American Old West. Longabaugh likely met Butch Cassidy (real name Robert Leroy Parker) after Parker was released from prison around 1896. Together with the other members of "The Wild Bunch" gang, they performed the longest string of successful train and bank robberies in American history.

• http://en.wikipedia.org/wiki/Sundance Kid