Nancy Guthrie missing: Authorities are investigating the disappearance of Nancy Guthrie, the 84-year-old mother of Savannah Guthrie, who was last seen on January 31 around 9:45 p.m. Officials believe the case may involve a possible abduction. Investigators have questioned neighbors in the Catalina Foothills area about unusual internet disruptions or security camera malfunctions that occurred that night.