As it was said before - I'm nervous about going to my first day of class because of possible copy-cats. It really hits hard when you go to a technology school of the same size and you can just imagine what it would be like.
As for the people who think they would have done something different when lined up against a wall. Its difficult to assume you know what you'd do when in a completely new and different situation, I pray that none of you will ever experience that and we shouldn't assume that such heroics weren't done. In fact, I wouldn't be surprised if many of the students did attempt it, and just didn't make it. Actions are a lot different in retrospect, and I hope that such a thing never happens to anyone again. My thoughts go out to all of the families and friends of the involved.