Apparently, there are different standards in different communities.
If two michievious little girls manage to get out to wander around their blue-collar neighborhood while their exhausted mother sleeps, a crime has been committed.
If a welfare mother accidentally drops her child into too-warm bath water over at the "Fey" apartments, she is taken out in hadcuffs and her children are removed from her.
If you want to get away with homocide, you need to live in an affluent white suburb and drive a Mercedes-Benz SUV.