The Spotlight: A mother's fight for justice

Surveillance video shows the arrest of a woman accused of biting a large chunk of flesh out of a victim's forehead during a vicious attack on a stranger on downtown Seattle street. Plus, a young man found beaten to death inside his apartment. Detectives are sure he knew his killer but need help to solve his case. And, the mother of a man killed in a hit and run makes a passionate plea for a longer prison sentence for the killer and it works.