John and Tom Power in 1960. The Powers brothers were serving a life sentence in Arizona State Prison for the murders of three sheriff’s deputies in 1918. Arizona Daily Star

John and Tom Power lived with their father John in a cabin in the Galiuro Mountains, near Klondyke. The brothers were accused of draft evasion and were ordered arrested. A posse rode horses to the cabin early on Feb. 10, 1918. A shootout ensued, resulting in the deaths of the Graham County Sheriff and two deputies, as well as the elder John Power. Go to to see photos of the Power brothers in prison.