Wow... what... interesting views we have, Guest.
I agree! Kill EVERYONE who's attached to the story! Kill the mother! Kill the father, for not being there to stop her! Kill the neighbors for not noticing that she was that depressed! Kill the guy at the local grocery store who bagged her last order of groceries for not stopping her! Kill EVERY police officer in town, because obviously they're criminally negligent for not stopping not one but FIVE murders! Kill every judge in the nation, for not knowing who this woman was, and not ordering her to stay away from her children! Kill everyone working for the media, because dammit they HAVE to have caused this somehow! Kill everyone reading this thread, because they didn't figure out how to stop this before it was too late!
Or better yet, realize that by teaching people that killing is the way to remove something (or someone) undesirable from society and/or your life you teach them that life is cheap, and figure out something new to do with 'captial' criminals.