New details have emerged in the search for Nancy Guthrie after a bone discovered near her home in Tucson was found to be more than 750 years old and unrelated to her disappearance. Nancy Guthrie, 84, the mother of Savannah Guthrie, has been missing since what authorities described as an abduction on 1 February. She was last seen at her home in the Catalina Foothills area on the evening of 31 January.
