It was after midnight, early on a Saturday in the college town of Moscow, Idaho, and student Jason "Cowboy" Monson was at the police station to get back his Desert Eagle .45-caliber handgun.
In McDonough, Ga., about the same time, two teenage brothers were still awake. A friend was sleeping over, and their mother had let the boys handle her .38-caliber revolver, which was unloaded. She'd gone to bed.
In South Valley, N.M., it was quiet at the Griego household as 15-year-old Nehemiah waited for his father to come home from the night shift at a homeless shelter. The son was holding his father's AR-15 semi-automatic rifle.
