Search for Nancy Guthrie reaches six-month mark, as family continues to plead for help

Saturday, Aug. 1 marks six months since Nancy Guthrie, the mother of "Today" show host Savannah Guthrie, vanished from her Tucson-area home. FOX 10's Jacob Luthi has more, after a new plea was issued from the Guthrie family and the Pima County Sheriff.