the only reason shit like this doesnt happen more often is that the people THINKING of doing this, usually dont kill themselves after doing it like the kids at the school shooting did… they want to kill and live themselves. So if the odds were even ever so slightly stacked against them that some 57 year old man could pop them mid shooting they might think twice and not do it.
Whats retarded are the people that think doing NOTHING, AKA KEEPING GUNS OUT OF SAFE RESPECTABLE PEOPLES HANDS is ever going to help. Doing nothing is the only sure fire bet that it can only get worse. Atleast trying to allow good people to carry and protect is a chance at the right direction.