The FBI is planning on using genetic genealogy in the Nancy Guthrie investigation.
On Tuesday, Feb. 17, the Pima County Sheriff’s Department confirmed that a glove found two miles from Nancy's Tucson home—which appeared to match the gloves seen in a doorbell camera video of a potential suspect—did not match any profiles in the CODIS system.
CODIS, or the Combined DNA Index System, is a computer software program that operates local, state, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons cases. To date, there are 27 million DNA profiles in the CODIS system.
“DNA evidence from gloves found approximately 2 miles from Nancy Guthrie’s residence was submitted to CODIS & produced no matches. There is additional DNA evidence that was found at the residence that is also being analyzed,” read a message posted on the Sheriff’s Department’s official X account.
RELATED: Key Evidence in Nancy Guthrie Case Being Sent Back to Arizona for More DNA Testing
However, the DNA evidence from the gloves may not be a dead end just yet. According to TMZ, the FBI is now using genetic genealogy to analyze the sample, hoping to identify a potential match through a relative of the suspect.
While 23andMe and Ancestry.com require a legally binding warrant, subpoena, or court order to release user DNA data to law enforcement, smaller DNA testing companies, like GEDMatch, have voluntarily released data in the past.
Genetic genealogy has become a powerful tool for solving crimes, most notably in the 2022 murders of four University of Idaho students. In that case, investigators analyzed DNA recovered from a knife sheath left at the scene and compared it to public genealogy databases, ultimately building a family tree that led them to Bryan Kohberger.
RELATED: Sheriff Investigating Nancy Guthrie Case Reveals Why Her Family Was Cleared as Suspects
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