> Because most of these killers aren't trying to kill as many people as possible. I don’t understand, this kid just killed 21 4th grade kids!! I agree that th

> Because most of these killers aren't trying to kill as many people as possible. I don’t understand, this kid just killed 21 4th grade kids!! I agree that there are other affective methods of mass killing but then why don’t we see them happening more often all over the world. You keep pointing at these one off incidents.