Virgil Walter Earp was both deputy U.S. Marshal and Tombstone, Arizona City Marshal when he led his brothers Morgan and Wyatt, and Doc Holliday in a confrontation with outlaw Cowboys at the Gunfight at the O.K. Corral on October 26, 1881. They killed brothers Tom and Frank McLaury and Billy Clanton. All three Earp brothers had been the target of repeated death threats made by the Cowboys who were upset by the Earps' interference in their illegal activities. All four lawmen were charged with murder by Ike Clanton, who had run from the gunfight. During a month-long preliminary hearing, Judge Wells Spicer exonerated the men, concluding they had been performing their duty.
But two months later on December 28, friends of the slain outlaws retaliated, ambushing Virgil. They shot him in the back, hitting him with three shotgun rounds, shattering his left arm and leaving him permanently maimed. The Cowboys suspected were let off for lack of evidence. His brother Morgan Earp was assassinated in March 1882. Charges against those suspected were dismissed on a technicality. Wyatt Earp, appointed as deputy U.S.