Nancy Guthrie Case Finally Gets DNA Update: FBI Is Analyzing ‘Potentially Critical’ Evidence Found in 84-Year-Old’s Home—’Including Hair’

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A "potentially critical" step forward has been taken in Nancy Guthrie's case, nearly 11 weeks after the missing 84-year-old was abducted from her Arizona home, with reports now emerging that the FBI has received and is analyzing DNA evidence that was obtained from inside the property, "including a hair."

On April 16, more than two months after "Today" show host Savannah Guthrie's mother went missing, FBI sources told NewsNation and ABC News that its official laboratory has received a DNA sample that had been undergoing testing in a private lab in Florida.

The insider noted that this DNA evidence is not new, but rather has been extracted from a variety of materials that was collected from Nancy's Tucson-area dwelling in early February. That evidence had previously been sent to a laboratory in Florida by the Pima County Sheriff's Department and has only now been returned to the FBI bureau.

"There is no new DNA evidence in the Nancy Guthrie case. The FBI requested this material over two months ago," an FBI official told ABC News.

"The Pima County Sheriff's Office sent it to a private lab in Florida. Eleven weeks later, that lab has now transferred an original hair sample to the FBI Laboratory for testing. We remain fully committed to this investigation."

Anyone with any information about Nancy Guthrie's case should call 1-800-CALL-FBI, 520-351-4900, 88-CRIME, or visit https://tips.fbi.gov/.

According to the outlet, the FBI is now using "new technology to conduct advanced analysis on the DNA sample" in order to see whether it might provide information about Nancy's alleged kidnappers.

Pima County Sheriff Chris Nanos—who has come under heavy criticism over his handling of the case—previously stated in March that authorities had collected a number of DNA samples from Nancy's home, but that authorities were struggling to extract individual profiles from that evidence.

"It’s a challenge because we know we have DNA, but now we have to deal with that mixture and how we’re going to separate it," he said.

Sheriff Nanos has previously admitted that authorities were still trying to separate out cross-contaminated DNA discovered inside Nancy's home, revealing that investigators had run into some "challenges" in their examination of the evidence.

"We listen to our lab, and our lab tells us that there’s challenges with it, and we understand those challenges," he told NBC News.

"But our lab also knows that the technology is moving so fast and in such a frenzy that they think some of this stuff will resolve itself just in a matter of weeks, months or maybe a year, to allow them to do better with, say, a mixture of that kind of thing."

At the time, Nanos also noted that previous DNA samples that had been submitted to the Combined DNA Index System (CODIS), a database used by the FBI to track convicted criminals, have not resulted in a match, but that the additional evidence would be analyzed when they were "sorted out."

“We believe that we may have some DNA there that may be our suspect, but we won’t know that until that DNA is separated, sorted out, maybe admitted to CODIS, maybe through genetic genealogy,” Nanos added.

Days after Nancy was forcibly taken from her home, the FBI released security camera footage of a masked intruder, which was recovered from a Nest doorbell camera that is thought to have been removed from the property during her abduction.

The person in the footage was seen approaching Nancy's front door in the early hours of Feb. 1—not long before the Nest video stream was cut off. However, in the two months since that video evidence was released, the man in the clip has not been identified. It is also unclear whether he was acting alone or had accomplices.

Reports about the FBI's analysis of the DNA marks the first significant update in Nancy's case in several weeks now and comes around 10 days after her daughter, Savannah, returned to the "Today" show for the first time since her mother disappeared from her home.

Prior to her on-air return, Savannah sat down with her former co-host, Hoda Kotb, for her first on-air interview about her mother's case, in which she admitted her fears that Nancy had been abducted because of her own fame.

Guthrie revealed that it was her brother, Cameron, who was the first to suggest to her that their mother might have been kidnapped in a ransom attempt.

"Even on the phone when I called him, he knew," she said. "He said, ‘I think she’s been kidnapped for ransom.’ And I said, ‘What? Well, why? What?’

"It sounds so, like, how dumb could I be? But I just—I didn’t wanna believe. I just said, ‘Do you think because of me?’ And he said, ‘I’m sorry, sweetie, but yeah, maybe.’ But I knew that."

Breaking down in tears, Savannah issued a heartbreaking apology to her mother for any part her career may have played in her abduction, saying: "I’d just say, ‘I’m so sorry, Mommy. I’m so sorry.’ I’m sorry to my sister and my brother and my kids and my nephew and Tommy, my brother-in-law.

"If it is me, I’m so sorry. I’m so sorry."

On the day of Guthrie's return to the "Today" show, entertainment outlet TMZ revealed that it had received two new messages from an unknown sender who claimed to have significant information regarding the whereabouts of the missing 84-year-old's body, as well as details about those responsible for her capture.

The FBI and the Pima County Sheriff's Department have not yet revealed whether the note has been verified.

What is the full timeline of Nancy Guthrie's disappearance?

Sheriff Nanos noted during a media briefing on Feb. 5 that, while times are approximate, his team has pieced together several pieces of evidence that indicate Nancy's movements—and the timeline of her apparent abduction.

Nancy, 84, was reported missing at around 12 p.m. local time on Feb. 1, around 14 hours after she was dropped off at the property following a family dinner. When she failed to turn up at her usual church gathering on Sunday, her friends alerted her family, who found her home was empty.

SATURDAY, JAN. 31

5:32 p.m. Nancy travels to daughter Annie's house in an Uber for "dinner and playing games with the family."

9:48 p.m. A garage door at Nancy's house opens when she was dropped off at the property by her son-in-law, Tommaso Cioni.

9:50 p.m. The garage door closes, indicating that Nancy was inside the home.

SUNDAY, FEB. 1

1:47 a.m. Nancy's doorbell security camera is disconnected.

2:12 a.m. Movement is detected on a security camera at the home.

2:28 a.m. Nancy's pacemaker app indicates that the device has been disconnected from her phone.

11:00 a.m. Nancy fails to arrive at the home of a friend, where she had been due to watch a church service livestream.

11:56 a.m. Nancy's family travels to her home to check on her and finds the property empty.

12:03 p.m. The family calls 911 to report Nancy missing.

12:14 p.m. Police officers arrive at Nancy's home.