Genetic genealogy brings promise and challenges to the Nancy Guthrie case
NBC News
TUCSON, Ariz. — A Q-tip, a tissue and a pizza crust
TUCSON, Ariz. — A Q-tip, a tissue and a pizza crust.
To investigators, this seemingly innocuous trash was DNA-laden treasure, helping crack the cases of the University of Idaho murders, the Golden State Killer and the Gilgo Beach slayings, according to authorities, using a forensic tool called investigative genetic genealogy.
Investigators in the Nancy Guthrie case hope that science can point to a suspect. But there are challenges.
Guthrie, the 84-year-old mother of “TODAY” co-host Savannah Guthrie, was reported missing on Feb. 1. It’s been three agonizing weeks since her disappearance, and authorities haven’t publicly identified a suspect or a person of interest. Officials have cleared the Guthrie family as potential suspects, Pima County Sheriff Chris Nanos said.
Nanos, whose agency is leading the investigation along with federal and state partners, said last week that mixed and partial DNA was found at Guthrie’s home. Mixed DNA is a forensic sample that has more than one person’s genetic material.
Four people were injured when authorities said an Air Canada passenger plane collided with a fire truck on a LaGuardia Airport runway late Sunday, according to two sources familiar with the matter
Treasury Secretary Scott Bessent defended strikes on Iran's infrastructure since the U.S and Israel's joint operation began, saying "sometimes you have to escalate to de-escalate."
Tom Homan says ICE agents will assist at crowded airport security points amid TSA staffing shortages
reak travel underway and as a partial shutdown of the Department of Homeland Security has dragged on since mid-February
Some days for Rachel Jordan start at 5 a.m. and don’t end until midnight — sometimes for multiple days in a row.“I’m just exhausted, honestly,” she said in an interview
At least 15 campaign ads featuring AI-generated content have run since November, stoking concerns that the now-ubiquitous technology could cause confusion or even mislead voters ahead of the 2026 midterm elections
At least 15 campaign ads featuring AI-generated content have run since November, stoking concerns that the now-ubiquitous technology could cause confusion or even mislead voters ahead of the 2026 midterm elections
More than 400 Transportation Security Administration workers have quit since a partial government shutdown that began on Feb. 14 has left them working without pay, the Department of Homeland Security said
Robert Mueller III, the long-serving FBI director who later served as the special counsel overseeing the investigation into Russian interference in the 2016 election, has died.
After putting an aggressive redraw of the state’s congressional map before voters, some Virginia Democrats are growing uneasy about its prospects for passage one month out from the special election
Like many Americans, Ms. Rachel said she first became aware of the family detention center in Dilley, Texas, after federal immigration agents detained a 5-year-old in Minneapolis.
WASHINGTON — President Donald Trump is weighing whether to send possibly thousands of U.S. troops into Iran as he looks for a way to achieve some of his key goals and end the war, according to the two current U.S. officials, two former U.S. officials and another person familiar with the discussions
After two storms struck Hawaii over the past week, causing flooding, officials warned that a large dam on the island of Oahu is at risk of failure.
Chuck Norris, the square-jawed martial artist and Hollywood action hero who became a symbol of rugged American masculinity as star of the CBS series “Walker, Texas Ranger” and later as a popular internet meme, died Thursday, his family said