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
Gunfight at the O.K. Corral escape, was the beginning of increasingly bad feelings between the Earp brothers and Cowboy factions. Wyatt Earp and Cochise County sheriff Johnny Behan were interested in the same sheriff's position and also may have shared an interest in the same woman, Josephine Marcus, known as Sadie. Citizens of Tombstone believed that Behan and Marcus were married, but Behan was a known womanizer and had sex with prostitutes and other women. In early 1881, Marcus ended the relationship after she came home and found Behan in bed with the wife of a friend and kicked him out, although she used the