Family feuds in the United States had occurred on October 26, 1881, and was itself the climax of the Earp–Clanton family feud, simmering since the summer of 1880. Tensions between the Earps and both the Clantons and McLaurys increased through 1881, culminating in the historic gunfight. At the O.K. Corral, three deputized Earp brothers, Wyatt, Morgan and Virgil, along with Doc Holliday, had killed Billy Clanton, Frank McLaury and Tom McLaury. The Clanton and McLaury families were aligned with the "Outlaw Cowboys", a loosely knit outlaw group of families, friends and acquaintances then living in surrounding Cochise and Pima counties. The Earp Vendetta ride was a
Warren Earp in ongoing livestock thefts and had repeatedly threatened to kill the Earps if they interfered. Warren was at his parents' home in Colton, California at the time of the Gunfight at the O.K. Corral on October 26, 1881. On December 28, 1881, the Cowboys ambushed Virgil Earp, maiming him. Warren returned to Tombstone and was deputized by Wyatt. On March 18, 1882, Morgan Earp was murdered while playing billiards. On March 20, 1882 he joined a posse guarding Virgil and Allie as they were transported to Tucson to catch a train for California. At the station, Frank Stilwell was spotted