Savannah Guthrie's family makes emotional plea for missing mother Savannah Guthrie's family issues emotional video plea for missing mother, Nancy Guthrie. Former FBI Assistant Director Chris Swecker analyzes the FBI's strategy for validating ransom demands, noting urgency due to Nancy's medical needs. NEW You can now listen to Fox News articles! Arizona investigators said Thursday that authorities have not yet identified a person of interest in the disappearance of 84-year-old Nancy Guthrie and