GUTHRIE FAMILY 'INNOCENT': Pima County, Arizona, Sheriff Chris Nanos said yesterday that no family members are considered suspects in Nancy Guthrie's disappearance and that they have been cooperative. "I’m not going to sit in silence when others are attacking the innocent," he told NBC News.

President Donald Trump threatened those responsible for the abduction of Nancy Guthrie with the “most severe” punishment if the 84-year-old mother of “Today” show co-anchor Savannah Guthrie is found dead.

Nancy Guthrie was taken from her home in Tucson, Arizona, more than two weeks ago and remains missing. Authorities have yet to publicly name any suspects or persons of interest as they investigate recovered DNA.

Many factors make Nancy Guthrie's disappearance from her Tucson case challenging for investigators to solve. Here are five of them.

New clues in search for Nancy Guthrie; Victims identified in Rhode Island hockey shooting; Severe winter weather threatens millions; and more on tonight’s broadcast.

FBI uses investigative genetic genealogy to analyze DNA in Nancy Guthrie kidnapping case, the same technology that solved Bryan Kohberger and Golden State Killer cases.

Authorities are hoping Nancy Guthrie’s pacemaker may assist them in locating her exact whereabouts as the investigation into her disappearance reaches week three. On Tuesday, February 17, the Pima