India, June 16 -- A new anonymous tip suggesting Nancy Guthrie's remains may be buried near the Mexico-Arizona border has pushed investigators to take a fresh look at one of the most complex missing person cases of the year as a statewide 911 outage hit Pima County.

Nancy Guthrie, the 84-year-old mother of TODAY Show host Savannah Guthrie, vanished from her Tucson home overnight between January 31 and February 1, 2026. The case triggered a multi-agency investigation involving the FBI and the Pima County Sheriff's Department. No suspect has been formally named yet.

A new anonymous tip has suggested Nancy's remains may be buried near the Mexico-Arizona border and it is now pushing investigators to reassess the case.

Authorities have not ...