FBI video forensics specialists were recently observed bringing advanced equipment into the vicinity of Nancy Guthrie’s residence in Tucson, Arizona. This activity comes as the search for the missing 84-year-old woman reaches its 12th day, following the discovery of blood at the site.

Images acquired by Fox News Digital depict the FBI’s Video Forensic Analysis Unit members arriving at Guthrie’s home, carrying several hard cases typically used to protect sensitive gear, into a tent stationed at the entrance.

This unit previously contributed its expertise in the investigation that led to capturing Bryan Kohberger, now serving a life sentence for the murder of a student in Idaho.

The team was also seen with a forensic height board, a tool used to match physical site details with surveillance footage obtained by the FBI.

A tent was erected over the front doorway of Nancy Guthrie’s Tucson home on Thursday, February 12, 2026, as per visuals captured by Kat Ramirez for Fox News Digital.

While the FBI does not disclose a comprehensive list of cases involving their forensic video experts, the Forensic Audio, Video, and Image Analysis Unit, which operates under the FBI Laboratory and Operational Technology Division, regularly provides technical assistance in some of the country’s most significant investigations.

According to FBI materials, the unit is responsible for enhancing and clarifying surveillance video, authenticating recordings and analyzing possible edits or tampering, extracting still images for investigative comparison, interpreting timestamps and metadata, restoring damaged or obsolete audio and video media and providing expert testimony in court.

FBI investigators search the Catalina Foothills in Tucson, Ariz., Wednesday, February 11, 2026. (DWS for Fox News Digital)

In the University of Idaho quadruple homicide case, the FBI assisted local authorities with digital evidence review and surveillance analysis used to track the suspect’s vehicle across multiple locations. Historically, FBI digital evidence teams have supported cases ranging from the 9/11 attacks to the Enron fraud prosecution. And the bureau has said its digital evidence laboratory conducts hundreds of audio and video examinations each year.

Fox News Digital also observed a box for a Blackmagic Design UltraStudio 4K Mini being brought into the home. It’s a device used in professional broadcast production.

A close-up of a box being carried by forensic investigators at the home of Nancy Guthrie in Tucson, Arizona, Thursday, February 12, 2026. The investigation into the disappearance of the 84-year-old mother of “Today” show host Savannah Guthrie is ongoing. (Kat Ramirez for Fox News Digital)

Tech expert Kurt “CyberGuy” Knutsson told Fox News Digital the UltraStudio 4K Mini is designed to capture and convert high-resolution video and audio across multiple formats.

“It’s a professional-grade tool often used in broadcast environments,” Knutsson said. “It allows you to ingest video from various sources and convert it into high-quality digital formats for analysis or sharing.”

Knutsson said the device could potentially be used to transfer video or audio from various formats into standardized digital files for preservation or further forensic review.

A forensic investigator carries a forensic height board from the home of Nancy Guthrie in Tucson, Ariz., Thursday, Feb. 12, 2026. (Kat Ramirez for Fox News Digital)

“It’s possible they’re taking precise measurements of the archway, the bricks, the stones and other fixed structures,” said retired FBI Supervisory Special Agent Jason Pack.

The measurements can help calculate the height of the masked man seen on Guthrie’s doorbell camera footage. 

The FBI is offering a $50,000 reward for information leading to Guthrie’s whereabouts. The investigation remains active and ongoing.

Nancy Guthrie disappearance timeline:

January 31, 2026

Between 9:30–9:45 p.m. – Family drops Nancy off at home

9:50 p.m. – Garage door closes (per authorities)

February 1, 2026

1:47 a.m. – Doorbell camera disconnects

2:12 a.m. – Security camera detects motion

2:28 a.m. – Pacemaker disconnects from phone application

11:56 a.m. – Family checks on Nancy after she misses weekly church livestream gathering

12:03 p.m. — 911 called

12:15 p.m. — Sheriff’s deputies arrive at home

Stepheny Price covers crime, including missing persons, homicides and migrant crime. Send story tips to stepheny.price@fox.com.