A timeline of Nancy Guthrie's disappearance as search stretches on

Savannah Guthrie's mom, Nancy Guthrie, was reported missing Feb. 1.

• 4H ago

Savannah Guthrie gives first interview since mom vanished: "It is unbearable"

Savannah Guthrie said her family is in agony as she made a tearful plea for someone "to do the right thing" nearly two months after Nancy Guthrie disappeared.

• 5H ago

Savannah Guthrie renews plea for clues in mother's disappearance

"Today Show" co-host Savannah Guthrie is renewing pleas to residents of Tucson, Arizona, to jog their memories in the hopes of sparking new leads in the disappearance of her mother​, Nancy.

• Mar 22

Nancy Guthrie investigation "becomes much harder" as time goes on, expert says

Law enforcement sources told CBS News that additional images were obtained from surveillance cameras installed at Guthrie's Tucson home, but they showed nothing suspicious.

• Mar 17

Nancy Guthrie's family offering $1 million reward for her whereabouts

Savannah Guthrie said in a new video that the family is offering an additional reward of up to $1 million for information about their mother Nancy Guthrie's whereabouts.

• Feb 25

Nancy Guthrie investigators turn to genetic genealogy. It's worked in big cases before.

Investigators in the Nancy Guthrie case have turned to genetic genealogy as they try to make the most of potential DNA evidence.

• Feb 24

FBI in touch with Mexico about Nancy Guthrie's disappearance, sources say

The FBI has been in touch with the Mexican government and Mexican law enforcement regarding the disappearance of Nancy Guthrie, law enforcement sources told CBS News.

• Feb 20

No DNA match in database from gloves found during Nancy Guthrie search

The DNA profile was recovered from gloves found during the investigation into the disappearance of Nancy Guthrie in Arizona.

• Feb 17

Nancy Guthrie's family have been cleared as suspects, sheriff says

All family members of Nancy Guthrie have been cleared as suspects in her disappearance, authorities in Arizona said.

• Feb 16

Glove found near Guthrie's home appears to match video, has DNA, FBI says

Nancy Guthrie, the mother of "Today" show co-host Savannah Guthrie, was last seen on Jan. 31 and was reported missing the following day, Feb. 1.

• Feb 15

FBI releases first description of suspect in Nancy Guthrie case, increases reward

Authorities on Thursday released the first physical description of a male suspect wanted in connection with the Arizona disappearance of Nancy Guthrie.

• Feb 13

Savannah Guthrie shares video clips of missing mom when she was younger

Savannah Guthrie shared two video clips and a family photo of her mother Nancy Guthrie as the search for the 84-year-old continued.

• Feb 12

FBI releases photos, videos of subject in Nancy Guthrie disappearance

FBI Director Kash Patel posted videos​ of a person outside the home of Nancy Guthrie, the mother of Savannah Guthrie, on the morning of her disappearance.

• Feb 10

Savannah Guthrie pleads for public's help in search for missing mom Nancy

"Today" show co-host Savannah Guthrie issued a plea for the public's help on Monday at what she called "an hour of desperation" in the search for her mother, Nancy.

• Feb 9

Nancy Guthrie "still out there," sheriff says, as FBI offers $50,000 reward

Investigators have no proof that the missing mother of "Today" show host Savannah Guthrie is still alive but are holding out hope she is "still out there," the sheriff said.

• Feb 6

Trump "deploying all resources" to get Savannah Guthrie's mom home

President Trump said he is directing all federal law enforcement to be at the "complete disposal" of Savannah Guthrie's family as the search continues for her mother, Nancy Guthrie.

• Feb 5