The disappearance of Nancy Guthrie, the 84-year-old mother of Today co-anchor Savannah Guthrie , is “highly unusual,” according to retired Federal Bureau of Investigations (FBI) agent Jennifer Coffindaffer. Nancy Guthrie was reported missing in Pima County, Arizona , on Sunday morning after she was last seen Saturday evening at her Tucson home. The 84-year-old is said to have limited mobility and does not suffer from cognitive issues. Pima County Sheriff Chris Nanos told reporters on Monday