Nancy Guthrie DNA evidence update: has the FBI finally identified a suspect after new forensic findings surfaced in the Tucson abduction investigation?

Nancy Guthrie DNA evidence update: A third biological sample recovered from inside her Tucson home does not match the victim, and Pima County Sheriff Chris Nanos now says "we believe this may be our suspect." Two prior CODIS submissions failed to return matches. FBI genetic genealogy testing is now underway. Walmart purchase records extend beyond Tucson. The $100,000 federal reward remains unclaimed. No arrest has been made in 21 days.