Authorities in Florida say an 18-year-old lost his balance on a hoverboard and accidentally shot his 13-year-old cousin in the back of the head.
The shooting happened Sunday in Orlando. Officials say Lavardo Fisher died Monday night.
The Orlando Sentinel reportsFisher was playing Xbox when he was shot.
An Orange County Sheriff's Office incident report says Fisher wasn't breathing when first responders arrived. He was taken to the hospital in critical condition.
Deputies say the cousin told deputies he didn't mean to shoot the gun. He hasn't been charged.
The gun was owned by 35-year-old Walter Morame. He wasn't at the home when the shooting occurred but was arrested later Sunday on charges of possession of a weapon by a felon. Records don't say whether he's hired a lawyer.