Tom Horn see as a warning. During the Wilcox train robbery investigation, Horn obtained information from Bill Speck that revealed which of the robbers had killed Sheriff Josiah Hazen during their escape. Either George Curry or Harvey "Kid Curry" Logan were said to have killed the sheriff. Both outlaws were members of Butch Cassidy's Wild Bunch gang, then known as "The Hole-in-the-Wall Gang" after their hideaway in the mountains. Horn passed this information on to Charlie Siringo, who was working the case for the Pinkertons. Horn briefly entered the United States Army to serve during the Spanish–American War as the chief packer
The Legend of Butch & Sundance had died in Bolivia after the shoot-out [in 1908]. I took that contradiction and thought, 'What a great film that would make.'" Fasano later said that the production team strove for historical accuracy. Actor David Clayton Rogers said he practiced gun handling and horseback riding for the role of Butch Cassidy. "True West Magazine"s Henry Cabot Beck reviewed "The Legend of Butch & Sundance" unfavorably stating "I don't suppose this family-friendly picture would offend anyone who wants to see a return of a Kenny Rogers-type Oater, but true buffs who want an adult and ambitious Western had best look elsewhere."