TUCSON, Ariz. — The forensic tent that briefly stood over Nancy Guthrie’s front porch, where evidence of blood had been discovered, has been taken down. This development, however, has introduced new intrigue regarding the advanced equipment investigators were seen bringing into the residence.
According to Joe Cardinale, a former NYPD homicide supervisor, the tent’s removal indicates that investigators have likely completed their work at that specific location. Cardinale shared these insights with Fox News Digital.
Cardinale further clarified that such tents serve to obscure the investigative process from onlookers and the general public.
“The use of the tent is strategic,” Cardinale explained. “It prevents any potential suspects from seeing what the investigators are focusing on.”
In Tucson, Arizona, forensic investigators were photographed carrying a box into Nancy Guthrie’s home on Thursday, February 12, 2026. The investigation into the disappearance of the 84-year-old mother of “Today” show host Savannah Guthrie continues. (Photo by Kat Ramirez for Fox News Digital)
Jason Pack, a former FBI Supervisory Special Agent, added that legal considerations also play a part in shielding investigative scenes from public view.
“You don’t want defense attorneys down the road arguing the scene was compromised because the whole world was watching,” Pack said.
Observers also noted a piece of professional video equipment being brought into the home that appears to be a Blackmagic Design UltraStudio 4K Mini, a device commonly used in television production.
A forensic investigator carries a forensic height board from 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 explained that 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.”
The device supports SDI inputs used in professional television production, HDMI connections and Thunderbolt 3 via USB-C to connect to Mac or PC systems. Some versions also allow capture from SD cards.
FBI investigators canvass the neighborhood around Annie Guthrie’s home in Tucson, Arizona, Tuesday, February 10, 2026. The investigations into the disappearance of her mother, Nancy Guthrie continues. (DWS for Fox News Digital)
Knutsson said the device could potentially be used to transfer video or audio from different formats into standardized digital files.
“It could be a way investigators are capturing video from older formats and converting it into high-quality digital files for preservation or further analysis,” he said.
Pack has said investigators may be conducting detailed forensic video analysis tied to the porch area.
“It’s possible they’re taking precise measurements of the archway, the bricks, the stones and other fixed structures,” Pack said, noting that those measurements could allow analysts to calculate a more accurate height estimate of the suspect seen in doorbell footage.
“Either way, it tells us the forensic work on that video is active and ongoing,” Pack added.
Authorities have not publicly confirmed what specific evidence is being processed or whether the equipment is tied to any particular piece of media.
Guthrie’s family members say she was dropped off at home between 9:30 and 9:45 p.m. on Saturday, Jan. 31. Her garage door closed at 9:50 p.m., according to authorities.
At 1:47 a.m. on Sunday, Feb. 1, authorities say the doorbell camera at Guthrie’s home disconnected, followed by a security camera detecting motion at 2:12 a.m. Her pacemaker disconnected from an application on her phone at 2:28 a.m.
Family members checked on Guthrie at 11:56 a.m. after she reportedly did not attend a weekly gathering where she normally watched a livestreamed church service.
Authorities were called and arrived at her home shortly thereafter.
Stepheny Price covers crime, including missing persons, homicides and migrant crime. Send story tips to stepheny.price@fox.com.
