Colorado Springs TV station KRDO reported that a 9-year-old boy found a handgun inside a Pueblo, Colo. home. Another 5-year-old child then got ahold of the gun and accidentally shot the toddler.
The 9-year-old told police that he learned how to handle the gun and get it ready to fire by playing "Call of Duty: Black Ops," according to the news station.
The 3-year-old underwent surgery at a local hospital and was in critical condition.
Police said the toddler's mother and her boyfriend, Adrian Chavez, were at home when the shooting occurred. Chavez was arrested and police said they planned to charge him with child abuse resulting in serious bodily injury for leaving the gun unattended.