‘Our hearts are in ruins’: Savannah Guthrie pleads for help 6 months after her mom vanished CNN Savannah Guthrie pleads for answers about missing mom Nancy in new post after ransom notes released CBS News Nancy Guthrie Ransom Notes Released by Sheriff’s Department Searching for New Leads The New York Times Police release Nancy Guthrie ransom notes in latest bid to find kidnappers BBC What Nancy Guthrie's life can teach about avoiding loneliness azcentral.com and The Arizona Republic