The gun control debate is raging again after a nine-year-old accidentally shot and killed her instructor. It happened during a shooting lesson at a gun range in Arizona. The instructor has been identified as 39-year-old Charles Vacca. He was standing next to the girl, teaching her to use an Uzi sub-machine gun. A video released by investigators shows the girl, whose identity hasn’t been released, holding the weapon in both hands. The recoil sent the gun over her head and Vacca was shot.