Nancy Guthrie, 84, was last seen at her home just outside Tucson on Jan. 31 and was reported missing the following day. Authorities believe she was kidnapped, abducted or otherwise taken against her will. Drops of her blood were found on the front porch, but authorities haven’t publicly revealed much evidence.

Nancy Guthrie, the 84-year-old mother of 'Today' show co-host Savannah Guthrie, has been missing for over three weeks.

Elderly kidnapping cases are extremely rare per FBI data, yet Nancy Guthrie's suspected abduction continues with investigators searching for answers.

An image the FBI released of the suspect​ at Nancy Guthrie's front door, without a backpack, was captured by her Nest doorbell camera prior to the night of her abduction.

The disappearance of Nancy Guthrie, 84, the mother of the “Today” show anchor Savannah Guthrie, has gripped the nation, with unverified reports of ransom notes, chilling doorbell camera footage and the fame of Ms. Guthrie’s daughter capturing intense interest.

Weeks have passed without any sign of the 84-year-old grandmother in fragile health.

Ret. FBI supervisory special agent James Gagliano discusses Savannah Guthrie offering a reward of up to $1 million for information about her mother’s whereabouts on ‘The Will Cain Show.’