I find it ironic that the people that are so willing to discuss removing our rights to bear arms don't ever mention reducing our tolerance for the types of people doing the killing. Without going too deep into that subject, I'd think that would be the better place to start. Kids are told to express themselves anyway they want these days, look and act anyway you want, take no responsibility for your actions and then expect them to somehow realize "not that far" on their own.
Kids threaten teachers and get a three or four day suspension. How bout a trip to juvie? Until we get back to punishing poor behavior, I believe we will continue to see these types of horrific tragedies.
I think we're taking the wrong approach to this problem.