people think, my life is going down the toilet, i might as well take everybody out with me, they ach tack the school they go to or a place of business. to go to a place where kids are having fun and stab somebody, it s very unusual. thank god we don t have to worry about it too often but it s a horrific crime. here s what i find interesting. i think you said you can t predict them because the person obviously finds some sort of thrill in stabbing someone and catching them off-guard and just the really spectacle of it all. is there anything you call it? i notice there s munchausen by proxy and all sorts of things? obviously this man did plan this because he said he wanted to go kill somebody in a note. we know it s not purely a psychotic type of thing where he thought aliens were inside the child and had to get rid of them. he wanted to kill someone. he picked this child and he thinks it s the meanest thing to do to society, he hates society.