Search for Nancy Guthrie enters second week as ransom note deadline approaches

The search for 84-year-old Nancy Guthrie is now in its second week. Investigators are still looking for clues that could lead to her whereabouts and a suspect in this suspected abduction. Today is the second deadline mentioned in a ransom letter sent Friday to a television station in Tucson. The FBI has not announced if the message is credible but says agents are taking it seriously. Today's show host Savannah Guthrie pleaded for her mother's return in a new video. We beg you now to return our mother to us so that we can celebrate with her. This is the only way we will have peace. This is very valuable to us and we will pay. Nancy Guthrie disappeared from her Tucson area home on February 1st. The Pima County Sheriff's Department says detectives are now conducting follow-ups at multiple locations.