"A Good Guy With a Gun"

“They are turning their training into reality,” he told me. “Doctor Jim McGee of the FBI calls them Classroom Avengers. What links them? None were involved in sports. None in student body government, none in Boy Scouts, none in volunteer activities. All were obsessed with violent media.”

This is a great read, start to finish.
http://www.thedailybeast.com/articles/2013/04/27/in-defense-of-a-good-guy-with-a-gun.html

"Soon after Sandy Hook, Nicholas Kristof wrote in The New York Times that it was time for the country to regulate guns as seriously as we regulate cars or ladders. Grossman argues that we should approach school shootings as we still do the terror of an earlier age: fire.

"“The Department of Education says that in 1998–99, 47 students were killed in school attacks. In 2007 it was 63. Not only is a violent attack the leading cause of death by children in schools, it is more likely than all other factors combined. If there were this many children killed by fires, we’d be moving heaven and earth to stop it. Do you know how many children have been killed in schools by fire in the last 50 years? Zero.”"

"Do we need armored glass and bullet-proof doors as standard furnishings in school, part of the basic building code? Are fire drills applicable to the new threat? Yes, Grossman said, and more.

"“Lockdowns work. Active killer drills work. Hunker down and hide works. But we need to make classrooms an area you can lock down. In Newtown they tried to secure an unsecurable area.”

"Grossman is also an outspoken advocate of the NRA’s second initiative, also widely disparaged in the media: “a good guy with a gun.” Here our conversation returned to sheepdogs, and while Grossman admits that having police at every school is cost prohibitive, he has other ideas.

"“There has never been a multiple homicide in a school where an armed guard was present in the building. In Columbine they waited until the cop was out of the building, on the other side of a parking lot. In Utah concealed carry is allowed in the classroom, and they have never had a multiple homicide in a school. I can’t even find a single homicide in a school. There might be one, but I can’t find it.”"