Watch: Savannah Guthrie's Mom Missing: Man Released After Being Detained by Police for QuestioningAuthorities have ruled out those closest to Nancy Guthrie amid the ongoing investigation into her disappearance. More than two weeks after Savannah Guthrie's mom went missing from her Tucson, Ariz., home, Pima County Sheriff Chris Nanos issued a statement to clarify the potential list of subjects involved in the 84-year-old's case. "To be clear...the Guthrie family-to include all siblings and spouses-has been cleared as possible suspects in this case," he shared in a Feb. 16 statement.