Standing near an exhibit on World War II weapons, Montgomery said the Connecticut shootings weren't about the guns, but about mental illness.
A longtime NRA member, he expects that gun rights advocates might have to give some ground this time. "I'm not a high-capacity magazine guy," he said. "They're not even useful."
Still, he believes in guns. He's taught his two older kids how to shoot. And he's taught his kids what to do in case of a school shooting.
"I've told them, ever since the Columbine shootings, just to flee. Flee," he said.
Earlier this week, he said, when he walked Timothy to school, he gave him another piece of advice in case of a shooting. "I told him," Montgomery said, "to make sure the teacher locks the door."