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
Butch Cassidy and the Sundance Kid is the laconic dead-shot "Sundance Kid". The two return to their hideout at Hole-in-the-Wall (Wyoming) to discover that the rest of the gang, irked at Butch's long absences, have selected Harvey Logan as their new leader. Harvey challenges Butch to a knife fight over the gang's leadership. Butch defeats him using trickery, but embraces Harvey's idea to rob the Union Pacific "Overland Flyer" train on both its eastward and westward runs, agreeing that the second robbery would be unexpected and likely reap even more money than the first. The first robbery goes well. To celebrate, Butch and Sundance visit a