The search for Nancy Guthrie enters its 10th day

The Guthrie family making a direct appeal in that new video. Savannah thanking people across the country for their prayers and asking for help finding her 84year-old mom, even those far from the crime scene here in Tucson. The FBI also putting up these digital missing persons billboards donated by advertising giant Clear Channel in dozens of cities in the region.Meanwhile, we're learning more about how the Guthri first discovered Nancy was missing. A source close to the family telling NBC News that Nancy an ...