Michael "Mike" O'Rourke (1862 – 1882[?]), aka "Johnny O'Rourke" or "Johnny-Behind-the-Deuce", was a professional gambler of the Old West. While living in Charleston, Arizona, he killed Henry Schneider, a popular mine engineer, in what O'Rourke said was self-defense. But citizens were aroused and threatened to lynch O'Rourke. Constable George McKelvey took O'Rourke to Tombstone, chased by the angry mob. Once there, Deputy U.S. Marshal and Tombstone Police Chief Virgil Earp, his brother Wyatt, Cochise County Sheriff Johnny Behan, and others saved him from the crowd.