Gunfight at the O.K. Corral Cowboys and were not indicted. Wyatt Earp, newly appointed as Deputy U.S. Marshal in Cochise County, then took matters into his own hands in a personal vendetta. He was pursued by county sheriff Johnny Behan, who had received a warrant from Tucson for Wyatt's shooting of Frank Stilwell. Tombstone, near the Mexican border, was founded in March 1879. After silver was discovered in the area, Tombstone grew rapidly into a frontier mining boomtown. At its founding, it had a population of just 100, and only two years later, in late 1881, the population was more than 7,000 (excluding Chinese, Mexicans,
Gunfight at the O.K. Corral later, Virgil ran for the office on November 12, 1880 but lost to Ben Sippy. However, on June 6, 1881, Sippy asked for a two-week leave of absence. The city soon discovered $3,000 in financial improprieties in Sippy's records. A few days later Virgil was appointed as town marshal in his place. At the time of the gunfight, Virgil was both Deputy U.S. Marshal and town marshal. The city suspended him as town marshal after Ike Clanton filed murder charges, and after he was wounded in an assassination attempt on December 29, 1881, Wyatt replaced him as Deputy U.S. Marshal.