BIG PRAIRIE, Ohio — The guns were kept in the boy's bedroom, resting on a rack mounted to the wall. The one investigators say was used to kill his mother — a .22-caliber rifle — was found lying on his bed. On a cold winter evening in Big Prairie, a rural hunting town, the 10-year-old boy picked up the rifle and shot his mother, 46-year-old Deborah McVay, in the head, authorities say. Relatives said mother and son had been arguing over chores: He didn't want to... (GunPolicy.org)