After hearing about the Connecticut Massacre, I thought some things to myself. How will this be stopped in the future? It wouldn't be the simple buzzer system obviously, the gunman just shot a window and climbed in. That lead me to say, bulletproof windows all throughout the first floor? That would stop anyone from getting in at all without using the buzzer unless they decided to blow up a side of course, and nothing you can really to prevent that. The main thing I wanted to talk about was at least one police officer in each school. I'm pretty sure some have them, but I mean all here. If someone were to want and do something this like again then the last thing they'd want was someone in their way. An armed policeman would be that, having to get through him first.
Obviously things like politics and gun control would step in make these more challenging but one really needs to happen regardless.
The reason I don't support gun control is once they are banned/just some more limits are put on them you will still be able to access them. It was the same way during the prohibition of alcohol too, the deepweb or something could easily be the difference between just one man getting a gun, to do a horrible thing like shooting up a school or whatever he intends to do.