The investigation into the disappearance of Nancy Guthrie, the 84-year-old mother of television host Savannah Guthrie, has entered a new phase after authorities revealed that investigators are reviewing additional evidence connected to the case.

Nancy Guthrie has been missing since the night of January 31, when she was last seen at her home in the Catalina Foothills area near Tucson, Arizona. Authorities from the Pima County Sheriff’s Department believe she was taken from the residence during the night and have treated the case as a potential abduction from the beginning.

More than a month into the investigation, new developments have prompted renewed attention. Officials confirmed that investigators are now examining newly discovered evidence found near the area as they continue trying to determine what happened.

Sheriff Chris Nanos of the Pima County Sheriff’s Department has commented on the ongoing investigation, explaining that law enforcement teams are carefully analyzing all possible clues while maintaining tight control over sensitive details. Authorities say certain information cannot be released publicly because it could jeopardize the investigation.

The disappearance of Nancy Guthrie quickly drew national attention due to her connection to Savannah Guthrie, a co-anchor of NBC’s Today show. After her mother went missing, Savannah stepped away from several professional commitments to focus on the search and to assist law enforcement in the effort to locate her.

Investigators believe the incident occurred during the early morning hours of February 1. Surveillance footage recovered from a doorbell camera at the home reportedly showed a masked individual tampering with the device shortly before Nancy disappeared.

Authorities also noted that Nancy’s pacemaker monitoring system lost connection around the same time, which investigators consider another critical part of the timeline.

These details led investigators to conclude early on that Nancy likely did not leave the house voluntarily. Instead, law enforcement believes she may have been taken from the home against her will.

Since the case began, multiple agencies — including local law enforcement and federal investigators — have been involved in the search.

Investigators have conducted extensive searches in the surrounding area using drones, police dogs, and specialized search teams. Homes in nearby neighborhoods have been examined, and several people have been questioned as authorities work to build a clearer picture of what happened that night.

At one point, investigators identified potential evidence that appeared promising. Gloves found a short distance from the residence were initially examined as a possible lead, though later testing indicated the DNA belonged to a person not connected to the case.

Despite that setback, authorities say the investigation has continued to generate leads.

Officials have also reviewed surveillance footage showing a vehicle speeding through the area near the time of Nancy’s disappearance. Detectives believe the vehicle could potentially be connected to the events that occurred that night, though its identity has not yet been confirmed.

In addition, investigators have examined the possibility that electronic interference may have been used during the incident. Agents have looked into reports of internet disruptions in the neighborhood that occurred around the time Nancy disappeared, raising the possibility that a device such as a signal jammer could have been used.

Meanwhile, Nancy Guthrie’s family has made repeated public appeals asking for information that could help bring her home.

Savannah Guthrie and her siblings have offered a reward of up to $1 million for information that leads to their mother’s safe return. They have also released emotional video messages asking anyone with knowledge of the case to come forward.

Friends and neighbors describe Nancy as an active and independent woman who had lived in the Tucson area for decades. Her sudden disappearance shocked the community and triggered a massive law enforcement response.

As the investigation continues, authorities say the newly surfaced evidence could help investigators move closer to understanding what happened.

However, officials remain cautious, emphasizing that solving cases like this often takes time and careful analysis of every detail.

For now, Nancy Guthrie’s whereabouts remain unknown, and the search for answers continues as investigators examine every possible lead in one of the most closely watched missing-person cases in the country.