The disappearance of 84-year-old Nancy Guthrie from her upscale home in Catalina Foothills, Arizona, has taken a chilling turn with the revelation of unidentified DNA evidence that has left investigators scrambling for answers. Reported missing on February 1, 2026, after spending the previous evening with family, Guthrie vanished under suspicious circumstances. Blood was found on her porch, and surveillance footage from a doorbell camera captured a masked man—approximately 5’9″ tall, medium build—wearing a ski mask, jacket, long pants, gloves, and carrying a backpack, prowling outside her residence in the dead of night.

Authorities quickly zeroed in on a key piece of evidence: a black rubber glove discovered roughly two miles from the home, in a field beside a road. The glove strikingly resembled those worn by the suspect in the video, raising hopes it could crack the case wide open. Forensic analysis recovered a clear DNA profile from an unknown male on the glove. However, when submitted to the FBI’s Combined DNA Index System (CODIS)—a vast national database containing millions of profiles from convicted offenders and crime scene samples—the results came back negative. No matches. This means the individual has no prior criminal record in the federal system, or the profile simply isn’t there.

Adding to the intrigue, separate DNA evidence collected directly from inside Guthrie’s residence also belongs to an unidentified person—not Nancy, not any immediate family member, and not matching the glove sample or CODIS entries. Investigators describe some of the home DNA as mixed, complicating the analysis and potentially requiring months of advanced lab work to separate and identify contributors. The absence of hits in CODIS has shifted focus toward emerging techniques like genetic genealogy, where commercial databases (such as those from ancestry or consumer testing companies) can trace familial connections even without a direct criminal match.

The investigation remains highly active nearly a month later. Search efforts continue across the rugged Arizona terrain, with community volunteers, aircraft scanning for signals from Guthrie’s heart pacemaker, and thousands of tips pouring in after a $1 million reward was announced by the family. Savannah Guthrie, the prominent NBC “Today” co-anchor and Nancy’s daughter, has made emotional public pleas, urging anyone with information to come forward and emphasizing belief in human goodness.

Despite the setbacks with DNA, law enforcement stresses that unidentified profiles can still yield breakthroughs—either through future matches in other cases, familial searches, or as the database grows. The masked intruder’s identity remains elusive, but the presence of foreign DNA inside a victim’s home and on an item linked to the suspect paints a picture of a calculated act, possibly abduction, with the perpetrator still at large and potentially unknown to authorities.

As the case edges toward the one-month mark, the mystery only intensifies: Who left the DNA behind, and where is Nancy Guthrie now? The hunt continues, fueled by technology, persistence, and a family’s desperate hope.