In a new Instagram video, Savannah Guthrie thanked the public for praying for the safe return of her 84-year-old mother, who has been missing for more than a week. "We believe that somehow, some way, ...

"We believe that our mom is still out there. We need your help," Savannah implored, calling the start of a new week since Nancy was first reported missing "an hour of desperation." The 84-year-old was ...