Nancy Guthrie, mother of NBC News "Today" co-host Savannah Guthrie, is believed to have been kidnapped from her home in Tucson, Arizona, sparking a massive hunt and a race against time to find her. LOS ANGELES: Detectives searching for the kidnapped mother of a top US TV news anchor said on Thursday (Feb 5) that blood discovered on her doorstep belonged to the missing 84-year-old woman, in the latest twist in a case that has gripped America. Nancy Guthrie, mother of NBC News "Today" co-host