Okay, I surrender! I did not intend to insult anyone, so if I did, I humbly apologize. I completely agree that there just is no proper way to prevent these events. But, if we don't continue to discuss, and ideas, no matter how wrong they may be, we will never find potential improvements.
I don't know how we get there either, but if a troubled youngster threatens to shoot up a school there should be a method and process to make sure that they don't follow thru on their threats. I don't know how. I'm not that smart, but if they're telling you they're going to kill a bunch of people, we should believe them. If nothing else, making a terroristic threat is a crime. Let's do something with that.