Not to mention IQ is completely irrelevant here. The score has too many factors to even matter, most notably age and location. You could score a 90 in one place, and go somewhere else in the world and score 20-30 points higher, because the average of that area's IQ will effect your score. Hence, going to an area full of highly educated people with excellent reasoning skills, your score will not be as high as you might think it should be.
Oh wait, this isn't a topic about IQ, it's about a school shooting, how silly of me. Non-Americans, commence commenting on how insane everyone in the US is, and Americans, continue not caring. I'm gonna go to bed.