TUCSON — Former FBI special agent Jennifer Coffindaffer urged continued efforts to solve the disappearance of 84-year-old Nancy Guthrie, who went missing from her home in Tucson, Arizona, on Feb. 1. Coffindaffer advocated for broader media campaigns and forensic analysis of DNA evidence found at the scene.

During an interview on Sunday, she stated the FBI should conduct a campaign distributing images of a masked suspect captured on Guthrie's Ring camera. She added that public communications regarding the case should use Spanish. "I think it is so important that her name stay out there and that somebody who knows something continues to see this," Coffindaffer said.

The FBI stated on Wednesday that it is evaluating ransom notes received after Guthrie's disappearance to determine their legitimacy, noting that some had been discounted as extortion attempts. Derrick Callella allegedly sent a fake ransom note related to the case. Coffindaffer described Callella as "an absolutely unsophisticated criminal" who used personal devices, making him easy to trace.

Coffindaffer also noted that DNA evidence, including a rootless hair, was found at the scene of Guthrie's disappearance. "I think there's a lot more DNA they're working with," she said. "We know about a rootless hair, and I think that's a possibility."

Why It Matters

The recommendations from the former FBI special agent emphasize strategies for locating missing persons, particularly when initial leads may have diminished. The suggestions for a public awareness campaign, including the use of Spanish, aim to broaden the reach of the investigation. The focus on evaluating all available forensic evidence, such as DNA and incoming ransom notes, illustrates standard investigative procedures in complex missing person cases.