Herndon double homicide under investigation

More than 12 hours after two people were mysteriously killed inside a Herndon home, there's a very active police scene in the neighborhood. A woman was stabbed to death and a man was shot and killed. The woman's husband who talked to 911 operators was inside the home at the time. FOX 5's Adrienne DiPiazza reports from Fairfax County with the latest from police.