Investigators are analyzing DNA and surveillance footage as the search for Nancy Guthrie, mother of Savannah Guthrie, continues in Tucson after her disappearance.The Pima County Sheriff and the FBI are treating the case as a kidnapping following the discovery of blood on her porch and a ransom note demanding $6 m in Bitcoin.Savannah Guthrie withdrew from hosting the
Winter Olympics while her family offered a $1 m reward for information leading to the safe return of the 84-year-old.