Hour of the Gun accuracy than most motion picture accounts of the events and is based on the non-fiction book "Tombstone's Epitaph" by Douglas D. Martin, with a screenplay by Edward Anhalt. In "Hour of the Gun" Ike Clanton is shown, correctly, to have survived the Gunfight at the O.K. Corral, whereas previous films had him killed at the gunfight. Outnumbered but determined, Wyatt Earp (James Garner), his brothers Virgil (Frank Converse) and Morgan (Sam Melville) and ally Doc Holliday (Jason Robards) confront and clearly get the best of the Ike Clanton gang in a violent shootout at the O.K. Corral in the Arizona
Gunfight at the O.K. Corral to the left of his navel. Mathews stated that the wound beneath the ear was at the base of the brain and caused instant death. Sheriff Behan testified that he had heard Morgan Earp yell "I got him" after Frank was shot. However, during the gunfight, Frank moved across Fremont street, putting Holliday on Frank's right and Morgan on his left. This makes it much more likely that Holliday shot the fatal round that killed Frank. When he examined Tom McLaury's body, Mathews found twelve buckshot wounds from a single shotgun blast on the right side under his arm, between