TUCSON, Ariz. — The disappearance of Nancy Guthrie, the 84-year-old mother of NBC "Today" show co-anchor Savannah Guthrie, entered its 109th day on May 20, 2026, with a retired FBI agent raising new questions about the amount of trace evidence recovered from her Catalina Foothills home.

Guthrie was last seen on the evening of Jan. 31 after being dropped off at her residence. She failed to appear for a scheduled church livestream the next morning, prompting family members to report her missing on Feb. 1. Investigators found signs of a violent confrontation, including an open door, blood confirmed as belonging to Guthrie near the entrance, and other physical evidence. A doorbell camera captured a masked individual armed with a handgun tampering with the device around 1:47 a.m. on Feb. 1.

Pima County Sheriff Chris Nanos has described the investigation as active and ongoing, with the department working closely with the FBI. In recent comments to media outlets, Nanos stated that authorities continue to analyze biological and digital evidence. "We continue to work with our labs, whether it's on the digital end or the biological end: DNA," he said.

Nanos has expressed confidence that an arrest will eventually be made. "I believe, at some point in time, we will make an arrest in this case," he told reporters.

Retired FBI Special Agent Steve Moore, who has commented publicly on the case, challenged aspects of the early investigation and the handling of trace evidence. In an........

© International Business Times