Authorities trying to solve the disappearance of Nancy Guthrie say they might tap DNA genealogy databases, the same step that police took to unravel a decades-old series of murders in California and the fatal stabbings of four college students in Idaho.

Potential Google searches for Nancy Guthrie's address occurred weeks before the suspected kidnapping of Savannah Guthrie's mother in Tucson, Arizona.

The gesture comes as the search for Nancy Guthrie enters a third week after she was abducted from her Arizona home

The search for "Today" anchor Savannah Guthrie's mom Nancy is in its third week as investigators follow every possible lead in the case.

Nancy Guthrie's shocking disappearance has left residents in Tucson, Arizona, "rattled" nearly three weeks into the search for the missing 84-year-old, RadarOnline. com can reveal.

A source tells PEOPLE the 'Today' show anchor is “devastated” as the search for her mom, whom authorities believe was kidnapped, extends into its third week

The search for Nancy Guthrie has captivated traditional media, live streamers and true-crime buffs. But misinformation and speculation run rampant.

Authorities are searching for clues that may lead them to the person seen on Nancy Guthrie's Tucson, Arizona, porch the morning she went missing.