School shootings are mostly a sign of the problems in our state-funded, compulsory daycare centers, not our society. People usually fail to see the cause of a problem when they are the cause. So they look to outside sources to blame. (Movies, video games, music, etc)
One thing that I've never really understood is how, a 17 year old kid in highschool can get away with stuff that would get an adult thrown into prison. Lets see what happens when you're forced to be harrassed and assaulted for years.