Kalamazoo, Mich. (WZZM) – His grandfather says it was 100% "an accident."
Daniel Hummel says his 12-year-old grandson didn't mean to shoot and kill a family friend sleeping in the next room of their Kalamazoo home.
"He didn't mean to shoot it," says Hummel. "He accidentally hit the trigger and the gun went off."
Daniel Hummel says his grandson is mentally impaired, but managed to find the key to the gun-safe, unlock it, and load a shotgun.
"He said he was trying to find change in my pockets and he found the key to the gun safe," Hummel explains. "He unlocked it and he got a gun out and he put a bullet in it."
Then when he was trying to unload the gun and put it back, he accidentally pulled the trigger. Birdshot went through a closet wall into the living room and killed 28-year-old Deb Christner.