Has a teenage asshole ever been killed?

Every time I ever read an article about a recently killed tween or teen it will have between 1 and 5 quotes of friends saying "she was the sweetest" or "he was just a joy to have in the classroom." Does cosmic justice hate likable youngsters and kill them off willy nilly?

Obviously this post is facetious, but why is it so taboo to speak honestly about the recently deceased?