What We Know About the Disappearance of Savannah Guthrie’s Mother

Nancy Guthrie, 84, the “Today” show host’s mother, was last seen on Saturday night, the authorities said. The disappearance is being investigated as a possible kidnapping.

The authorities in Arizona are searching for Nancy Guthrie, 84, the mother of the “Today” show anchor Savannah Guthrie, who has been missing since Sunday and whose disappearance is being investigated as a possible kidnapping.

Ms. Guthrie was last seen at her home near Tucson on Saturday night around 9:50 p.m., according to Chris Nanos, the Pima County sheriff.

At a news conference on Thursday, the authorities confirmed that blood spattered on Ms. Guthrie’s front porch was hers, and Sheriff Nanos said a doorbell camera at her home had been disconnected at 1:47 a.m. Sunday and removed, adding that the authorities did not know where the device is.

Here’s what we know.

Nancy Guthrie missed church on Sunday.

When Ms. Guthrie did not show up at her regular Sunday church service, a friend notified her family, Sheriff Nanos said. When family members went to Ms. Guthrie’s home and did not find her there, they called 911.

The authorities responded at midday Sunday to her home in Catalina Foothills, an unincorporated community nestled against the Santa Catalina Mountains just north of Tucson, and brought in a search and rescue team, volunteers, dogs, drones and a helicopter.

Sheriff Nanos described Ms. Guthrie’s home as “a crime scene” at a news briefing on Monday, adding that “we saw some things at the home that were concerning to us,” without offering more details.

He added that Ms. Guthrie has limited mobility and requires medication every 24 hours, and could die without it.

Sheriff Nanos told The New York Times that Ms. Guthrie had dinner at the home of her older daughter, Annie, and son-in-law, Tommaso Cioni, on Saturday, and that Mr. Cioni took her home around 9:50 p.m.

On Thursday, the authorities said the tampering with the doorbell camera at her home, which was disconnected on the night she disappeared, had deprived investigators of crucial evidence.

Ms. Guthrie, whose youngest daughter had included her in several “Today” show segments over the years, was described as 5 feet 5 inches tall with brown hair and blue eyes, and “vulnerable.” The authorities described her as mentally sharp and said it was not a dementia-related case.

The Guthries are ‘ready to talk.’

As the search for Ms. Guthrie grew more urgent, the Pima County Sheriff’s Department said it did not have a strong lead, and pleaded for help from the public.

“Time is not on our side,” Sheriff Nanos said in an interview on Tuesday.

Late Wednesday night, Savannah Guthrie said in an emotional video that she and her siblings were ready to listen to ransom offers from whoever might have abducted their mother, but that the family would first need proof that she was still alive.

“We are ready to talk,” Ms. Guthrie said in the video, trying to hold back tears as she sat between her older siblings, Annie and Camron. “However, we live in a world where voices and images are easily manipulated. We need to know, without a doubt, that she is alive, and that you have her.”

On Thursday, Camron Guthrie said in a video on social media that the family had not yet heard from the kidnapper or kidnappers directly. “Whoever is out there holding our mother, we want to hear from you,” he said. “We need you to reach out and we need a way to communicate with you so we can move forward.”

The sheriff’s department said on Tuesday that it was “aware of reports circulating about possible ransom note(s).” It was not clear if those messages were sent by anyone believed to be involved in the abduction.

Sheriff Nanos said Thursday that it was too early to rule out anyone — even a relative — as a possible culprit.

“Everybody’s still a suspect in our eyes,” he said.

Savannah Guthrie withdrew from NBC’s Olympics coverage.

Savannah Guthrie, 54, is best known as one of the anchors of the NBC morning show “Today.” a job she has held since 2012.

After working in local news and as a lawyer, she joined NBC News in 2007. She worked for the network as a White House correspondent, filled in on “Meet the Press” and anchored the “NBC Nightly News.”

She was born in Australia and moved with her family to Tucson, where she grew up and attended college. She lives in New York with her husband, the communications consultant Michael Feldman, and their two children. She has also written children’s books.

NBC Sports announced on Tuesday that she would not travel to Italy, where she had been expected to play a key role in the coverage of the Milan-Cortina Olympics. Mary Carillo will take Ms. Guthrie’s place alongside Terry Gannon as a host of the network’s coverage of the opening ceremony on Friday, NBC Sports said on Wednesday.

President Trump spoke with Ms. Guthrie by phone on Wednesday, and he said on social media after her video was posted that he had directed federal law enforcement to be at her disposal and that of the local authorities.

“The prayers of our Nation are with her and her family,” Mr. Trump wrote. “GOD BLESS AND PROTECT NANCY!”

Ms. Guthrie, who has been absent from the “Today” show this week, has asked for prayers from her followers on Instagram. “Bring her home,” she wrote on Tuesday.

Neil Vigdor, Reis Thebault and Nicholas Bogel-Burroughs contributed reporting.

Related Content