“Today” show host Savannah Guthrie and her sister returned to their mother’s home outside Tucson in their first sighting at the house since Nancy Guthrie went missing a month ago.

Investigators in Arizona want residents near Nancy Guthrie’s home to share surveillance camera footage of suspicious cars or people in the month before the disappearance of “Today” show host Savannah Guthrie's mother.

FBI agents are fanning out across an Arizona neighborhood not far from Nancy Guthrie’s home.

Officials say a person has been detained for questioning in the disappearance of Nancy Guthrie.