Investigators returned to Nancy Guthrie's Tucson neighborhood as the search for the missing 84-year-old entered its 22nd day.

Community members in southern Arizona are organizing their own searches for Nancy Guthrie, who has been missing for weeks.

Fox News' Claudia Cowan reports on the search for Nancy Guthrie in Tucson, Arizona. The Pima County Sheriff's Department warns against citizen search parties.

​Nancy was last seen at her home on January 31 and was reported missing the following day. Officials still have yet to name ...

Authorities haven't named a suspect or person of interest in Nancy Guthrie's disappearance as the search continued for a ...

The following is a chronology of key developments in what authorities describe as the abduction of Nancy Guthrie, the 84-year ...

Federal and local authorities will use genetic genealogy to analyze DNA found at Nancy Guthrie's home as the ongoing ...

The intense search for Nancy Guthrie continues as investigators hope to find a DNA match for a possible suspect in her ...

Pima County Sheriff Chris Nanos revealed that there are problems with the DNA evidence collected from Nancy Guthrie’s house ...

The search for Nancy Guthrie, mother of "TODAY" show co-anchor Savannah Guthrie, continues into its second week.