So I challenged him to define exactly what could have prevented a person bent on killing innocent children from being successful in this case? The whole lunchroom went silent. I didn't need to drive it any harder. 35 people in the room; no answers but one. "A teacher trained and authorized to carry a firearm in the classroom". This answer from a young female employee of the catering company.
Some people "get it"; most don't.
Zactly.