Five days after a shooting at Brown University left two students dead, police have identified the person of interest caught on blurry surveillance video a couple blocks from the crime scene... Now a warrant is out for his arrest. Investigators also want to know if he was involved in the murder of a professor shot and killed at nearby MIT.  And a woman is accused of abducting a three-year-old girl more than four decades ago... Moving to another state... Changing her identity and raising the child alone. Her secret past caught up with her in the nation's largest retirement community... Florida's the villages, where she’s been arrested. she’s pleaded not guilty.  Plus, disturbing new video actually shot by Rob Reiner’s son, Nick shows him smoking marijuana, pretending to use cocaine, and talking about heroin. The video even more chilling now that he's charged with murdering his parents. And just days after helping her husband Dick Van Dyke celebrate his 100th birthday, the legendary actor's wife says she's afraid to leave the house... Because of a stalker.