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FBI Confirms It Is Testing Hair DNA in Nancy Guthrie Case

The transfer to the FBI Lab signals a push for advanced analysis of a mixed sample that could take months to yield a usable profile.

Overview

  • The FBI says it is analyzing a hair sample from Nancy Guthrie’s home that a private Florida lab transferred after earlier testing.
  • Following a public statement, the Pima County Sheriff’s Department emphasized that work with the FBI and other partner labs has been ongoing and does not reflect a sudden new lead.
  • Investigators describe DNA from the scene as a mixture from multiple people, and Sheriff Chris Nanos warned it could take up to six more months to separate contributors and develop usable profiles.
  • There have been no CODIS database matches or named suspects more than two months after Guthrie’s Feb. 1 disappearance, despite doorbell images of a masked visitor and testing of a nearby glove that produced no hit.
  • A sheriff’s post reading “Nancy has been located” referred to a different missing person and drew backlash, intensifying scrutiny of case communications as the family maintains a $1 million reward for information.