Needless to say we in the UK got this terrible incident chapter and verse as I'm sure the rest of the world did. Anyone I spoke to regarding this said how they felt sympathy for the family and friends of the innocent victims. You may be mourning in the US but again the UK stands with you.
As to the way the students should have reacted - we cannot imagine how they must have felt, most of them with no firearms experience and totally petrified. With the luxury of 20:20 hind sight we can speculated how we would have dealt with it, rushing him when he was reloading etc. However you really can't say with 100% conviction that you would. Self preservation and possibly blind optomism would maybe convince you that he would shoot someone else - not you. As has been said if you knew the script and you knew you were written out in the first act maybe you would do something, as this shows though most people wouldn't. I have nothing but admiration for the old professor who acted the way he did, his family should be proud of him.
I would hope that if I was in the same situation I would react positively and "do something" but at the end of the day unless you are actually there you can't say you would.
photopro