AU.S. toddler accidently killed herself after mistaking her stepfather's handgun for a Nintendo Wii control. Cheyenne Alexis McKeehan, three, shot herself in the stomach with the .380 caliber, semi-automatic weapon after finding it lying on a table in the living room. Her mother was sitting at the computer just a few feet away while her three-month-old brother was also lying nearby. Investigators today said that the child had probably mistaken the weapon for a Wii control.