Mystery solved? The FBI announcing today they have a suspect in custody who they say planted pipe bombs around DC 5 years ago, the night before the January 6th Capitol riot. Les Trent is in DC with the very latest. And was jealousy the motive for murder? We've been following the Brian Walshe case about the Massachusetts man accused of murdering and dismembering his wife. A dramatic moment in court as we learned the wife had a boyfriend. As Ann Mercogliano reports, today that boyfriend took the stand.  Brian Walshe has pled not guilty. Plus, a moment bringing holiday cheer across the country: the lighting of the Rockefeller Center Christmas tree in New York City. This year's tree has quite the touching backstory.