Muskingum County Sheriff's Lt. Mike Lecocq said deputies were dispatched to the Frazeysburg, Ohio home of Jen Miller just after 3:30 p.m. Miller's son had called 911 to report that he accidentally shot the friend he'd been playing with inside the house.
The two boys found a loaded revolver more than 10 minutes after Miller began mowing her backyard, according to the newspaper. The friend was pronounced dead at the scene of a single gunshot wound to the chest.
Other details, including who owned the gun and where the boys found it, were not clear. Muskingum County Sheriff Matt Lutz said the incident was under investigation.