Article continues below advertisementA law enforcement expert warned that time may be running out for authorities trying to apprehend the kidnappers of Nancy Guthrie. He called the looming ransom deadline a "critical moment" for the Guthrie family.Article continues below advertisementSource: @savannahguthrie/InstagramFormer law enforcement warned time is running out to locate Nancy Guthrie.The 84-year-old mother of Today show host Savannah Guthrie and two siblings is believed to have been taken from her Arizona home roughly nine days ago.