Police in Nancy Guthrie's case might turn to genealogy databases to search DNA evidence
#Nancy Guthrie#DNA investigation#Genealogy databases#Pima County Sheriff#Golden State Killer#Genetic genealogy#CODIS database#Tucson disappearance
📌 Key Takeaways
Arizona police are considering using genealogy databases to solve Nancy Guthrie's disappearance
Standard DNA searches in criminal databases have not produced matches in the case
This approach has successfully solved similar high-profile cases in the past
Genetic experts note both the potential and limitations of using genealogy databases for criminal investigations
📖 Full Retelling
Arizona authorities investigating the disappearance of NBC 'Today' co-anchor Savannah Guthrie's mother Nancy Guthrie announced on February 19, 2026, that they are considering turning to genealogical DNA databases to solve the case, after standard criminal database searches yielded no matches for evidence collected from Guthrie's Tucson-area home where she went missing on February 1. The Pima County Sheriff's department confirmed that DNA collected so far has not produced any matches in the national CODIS criminal database, prompting investigators to explore additional genetic genealogy options. Biological evidence from Guthrie's home is currently being examined at a lab for analysis, while authorities also investigate gloves found approximately 2 miles away that appear to match those worn by a masked suspect recorded on porch surveillance footage. This approach mirrors successful strategies used in high-profile cases such as the Golden State Killer investigation and the University of Idaho student murders, where genetic genealogy helped identify suspects through familial DNA matches. Geneticist Ruth Ballard emphasized the potential effectiveness of this method, stating 'It's a fantastic tool. If it's a good quality sample and they're able to get a profile, they could find a hit on that fairly quick,' though she noted that genealogy databases require higher quality DNA samples than criminal databases and may have limitations in ethnic diversity representation. Major genealogy companies like Ancestry, 23andMe, and MyHeritage can be compelled through court orders to provide information, while GEDmatch allows users to opt-in for police searches, a policy that has already proven instrumental in connecting crime scene DNA to distant relatives in previous investigations.
🏷️ Themes
DNA technology in criminal investigations, Missing persons cases, Genetic privacy concerns
The Pima County Sheriff's Department (PCSD) is an American law enforcement agency that serves the unincorporated areas of Pima County, Arizona. It serves the seventh largest county in the nation. It operates six district offices and three smaller satellite offices.
# Disappearance of Nancy Guthrie
**Nancy Guthrie**, an 84-year-old resident of Catalina Foothills, Arizona, was reported missing from her home on February 1, 2026. The case transitioned from a missing person report to a criminal investigation after evidence found at her residence indicated the invo...
American serial rapist and serial killer (born 1945)
Joseph James DeAngelo Jr. (born November 8, 1945) is an American serial killer, serial rapist, and former police officer known as the Golden State Killer, the Original Night Stalker, the East Area Rapist and the Visalia Ransacker, who committed 13 murders and numerous rapes and burglaries across Cal...
By — Ed White, Associated Press Ed White, Associated Press Leave your feedback Share Copy URL Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Police in Nancy Guthrie's case might turn to genealogy databases to search DNA evidence Nation Feb 19, 2026 11:33 AM EST Authorities trying to solve the disappearance of Nancy Guthrie say they might tap DNA genealogy databases, the same step that police took to unravel a decades-old series of murders in California and the fatal stabbings of four college students in Idaho. READ MORE: Fact-checking speculation that Nancy Guthrie's abduction is linked to the Epstein files The strategy could be fruitful: If unidentified DNA evidence can be connected to someone — even a distant relative — in a common genealogical database, it would give investigators more information and possibly lead to a suspect in Guthrie's kidnapping in Arizona. "It's a fantastic tool," said Ruth Ballard, a geneticist in California who specializes in DNA and has testified in hundreds of court cases. "If it's a good quality sample and they're able to get a profile, they could find a hit on that fairly quickly." The sheriff's department in Pima County, Arizona, said DNA collected so far in the investigation has not turned up any matches in a national criminal justice database known as CODIS, which has DNA profiles from convicted criminals and, in some states, people arrested for certain crimes. "Investigators are currently looking into additional investigative genetic genealogy options for DNA evidence to check for matches. CODIS is one option of many databases that are available," the sheriff's department said Tuesday. Grow your mind Subscribe to our Science Newsletter to explore the wide worlds of science, health and technology. Enter your email address Subscribe Form error message goes here. Thank you. Please check your inbox to confirm. The department said Wednesday that biological evidence from Guthrie's Tucson-area home w...
