More than eleven weeks after Nancy Guthrie vanished from her Tucson, Arizona, home, the FBI is turning to the same forensic playbook that helped convict the Gilgo Beach serial killer, and the delay in getting there is raising hard questions about how evidence was handled in the critical early days of the case.
A San Francisco forensics lab called Astrea Forensics, which produced the groundbreaking rootless-hair DNA analysis that sealed Rex Heuermann's guilty plea on April 8, is now believed to be on a shortlist of specialized private labs that could assist the FBI with evidence collected from inside Guthrie's home. Fox News Digital reported that an FBI official confirmed a hair sample was among the evidence recovered from the residence, a sample that had originally been shipped to a different lab entirely.
That routing decision sits at the center of a growing frustration. The Pima County Sheriff's Department initially sent the hair sample to DNA Labs International, a private lab in Florida, in the days after Guthrie's suspected kidnapping on February 1. The FBI, meanwhile, had wanted the sample more than two months ago, according to Ben Williamson, the bureau's assistant director of public affairs. The sample has now been forwarded to the FBI for more advanced testing, but the weeks lost in transit have not gone unnoticed.
Williamson took to X on Monday to make the bureau's position plain. He wrote:
"This is not new evidence or information. FBI asked to test this DNA 2 months ago with the same technology we've always had, when the local sheriff instead sent it to a private lab. Any further developments we will share as soon as appropriate."
That statement carries an unmistakable edge. A senior FBI communications official publicly noting that a local sheriff's department routed key evidence away from the bureau, and that the bureau had requested it months earlier, is not routine interagency diplomacy. It is a signal that the FBI believes time was wasted.
For the Guthrie family, every lost week compounds the anguish. Nancy Guthrie, the mother of NBC's Savannah Guthrie, is believed to have been abducted from her house. Details from the night she disappeared, including a back door reportedly left propped open, have fueled public interest and investigative urgency since the earliest days of the case.
A combined reward of more than $1.2 million has been offered for information leading to answers. Anyone with tips is asked to call 1-800-CALL-FBI.
Astrea Forensics earned national attention for its role in the Gilgo Beach case. Heuermann pleaded guilty earlier this month to murdering seven women and admitted to an eighth killing during a hearing in Suffolk County Court in Riverhead, New York. His defense collapsed under DNA evidence extracted from rootless hair samples, a technique that, until recently, was considered extraordinarily difficult.
CeCe Moore, one of the nation's leading genetic genealogists at Parabon Nanolabs in Virginia, told Fox News Digital she expects the FBI to lean on that same capability now. She pointed to Astrea's track record of at least six successful cases involving similar work.
"I am pretty confident that they will want to use the lab that they have been extremely successful with, which is Astrea."
Moore did not mince words about the alternative. She noted that DNA Labs International, the Florida lab the Pima County Sheriff's Department chose first, has been developing its own rootless hair analysis but has yet to produce publicly known successful cases.
"DLI has been working to refine their own rootless hair analysis, but I haven't seen any successful cases from them yet."
She added bluntly that sending the evidence to Astrea, "where there is a proven track record, is by far the safest option."
The question that hangs over this case is obvious: why wasn't the sample sent to the FBI, and potentially to Astrea, from the start? Moore's assessment and Williamson's public statement both point in the same direction. The Pima County Sheriff's Department made a choice, and the FBI disagreed with it.
The scale of the Guthrie investigation is substantial. The New York Post reported that about two dozen investigators from the FBI and Pima County are working the case, and up to five additional labs around the country are devoting resources to it. The Pima County Sheriff's Department has said the DNA recovered from Guthrie's home came from more than one person, a detail that broadens the forensic challenge considerably.
Investigators have also pursued physical evidence found beyond the residence. Just The News reported that a glove containing DNA was recovered about two miles from Guthrie's home and appeared to match a glove worn by the person captured on doorbell camera footage the morning she went missing. The FBI developed an unknown male DNA profile from that glove and was awaiting quality control and official confirmation before submitting it to CODIS, the national DNA database.
Earlier Ring camera footage from miles away had already been folded into the investigation, widening the geographic scope of the search.
But that lead, too, hit a wall. The Washington Examiner reported that DNA from those gloves produced no matches when run through CODIS. The Pima County Sheriff's Office confirmed additional DNA evidence from the residence is still being analyzed and that further testing is needed. No arrests have been made. Guthrie's family has been cleared as suspects.
The absence of a CODIS hit means the suspect's DNA profile is not in the national database, a fact that narrows the pool of likely offenders in one sense but complicates identification in another. It also raises the stakes for whatever Astrea or another advanced lab can extract from the hair sample now in FBI hands.
Allison Winter, a social worker and psychotherapist who has been working with the Heuermann family in the Gilgo Beach case, drew a direct line between the two investigations. She told Fox News Digital that the forensic capability that brought Heuermann to justice should be deployed without hesitation.
"If there's a chance they can solve Nancy's case through this lab, I believe without question it should be sent there."
Winter's comment reflects a broader frustration shared by observers of the case. The technology exists. The lab exists. The FBI wanted the evidence months ago. And yet, more than eleven weeks after a woman was apparently taken from her own home, the most advanced testing is only now getting underway.
Meanwhile, ransom note deadlines have come and gone, and the family continues to plead for any sign that Nancy Guthrie is alive.
Separately, criminal profilers have speculated about whether the abduction was an act of retribution against the Guthrie family, a theory that underscores how little investigators have been able to confirm publicly about motive.
Fox News Digital reached out to Astrea Forensics but did not immediately receive a response. It remains unclear whether the lab has been formally engaged or is simply on a shortlist of candidates. The FBI has not disclosed what other evidence besides the hair sample was collected from the home, and the specific testing DNA Labs International performed before the sample was redirected has not been detailed publicly.
What is clear is the gap between what the FBI says it asked for and what actually happened. Williamson's statement on X is now part of the public record: the bureau wanted this evidence two months ago, and the local sheriff's department sent it somewhere else.
In a case where every week without answers deepens a family's nightmare, that routing decision deserves more scrutiny than it has received. The technology that put a serial killer behind bars is available. The only question is why it took this long to use it.
