A week after Nancy Guthrie was abducted from her Tucson home, investigators spent the weekend searching at least two residences as more details emerged about a ransom note. The frantic search comes as Nancy's daughter, NBC News anchor Savannah Guthrie, issued a second video appeal to the kidnappers. Sources told The Times the ransom note felt credible because it included details about a specific damaged property and the placement of an accessory in the home. The Times has not reviewed the note, but sources said it sought millions of dollars for her return.