John Miller, CNN Chief Law Enforcement and Intelligence Analyst, stated that the unidentified DNA recovered during the investigation into Nancy Guthrie’s abduction will prove valuable once a suspect is identified.
Pima County Sheriff Chris Nanos confirmed that authorities have not yet identified the source of the DNA.
Miller clarified that the DNA did not match any “known contributors”—individuals who had legitimate reasons to be at or in Guthrie’s residence.
Miller also noted that the DNA is not from anyone with a felony conviction or serious arrest whose genetic material would be in the FBI system, as investigators would have already checked that database.
Nanos informed CNN that the Pima County Sheriff’s Department chose to send a glove discovered by the search team to their local lab instead of the FBI’s, explaining that their lab already possesses DNA samples from Guthrie, her family, her landscaper, and her housekeeper.
“If we knew who it was, we’d be actively pursuing it,” Nanos asserted. “However, we do possess some DNA, and we will keep collaborating with the lab on its analysis.”
Miller emphasized that this DNA will be crucial for the ongoing investigation, both for eliminating individuals as suspects and, once a suspect emerges, for linking them to Guthrie’s residence.
“It’s a pivotal clue that you set aside and compare against every possible individual,” Miller explained.