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.

DNA samples containing multiple profiles are hindering the use of national databases in the Nancy Guthrie missing person case, according to the Pima County Sheriff’s Department.

Former FBI agent Jennifer Coffindaffer told Newsweek that a Range Rover towed by authorities could provide key evidence.

Investigators searching for Nancy Guthrie, the mother of "Today" show co-host Savannah Guthrie, have uncovered several notable pieces of evidence as they try to identify a suspect.

Doorbell video and broken floodlights point to multiple suspects in Nancy Guthrie abduction case. Experts analyze evidence in mysterious disappearance.

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.

Investigators are hopeful that some of the DNA that was found at Guthrie's home can be parsed and help point to a suspect in her disappearance.