Nancy Guthrie case: Sheriff Nanos says 'we are' closer to solving 84-year-old's abduction

Nancy Guthrie, an 84-year-old woman and mother of Savannah Guthrie, has been missing for nearly 100 days after vanishing from her home in Catalina Foothills. Pima County Sheriff Chris Nanos says investigators are making progress in the case. A hair sample has been sent to the FBI for advanced analysis, which could potentially point to a suspect.