Nancy Guthrie investigators turn to genetic genealogy. It's worked in big cases before.
Investigators in the Nancy Guthrie case have turned to genetic genealogy as they try to make the most of potential DNA evidence.
Nancy Guthrie
Guthrie family increases reward to $1 million
Savannah Guthrie posted a new video on Tuesday pleading for the return of her mother. The family is now offering a $1 million reward. CBS News' Jonathan Vigliotti has the latest.
Savannah Guthrie posts video on mom's case
Savannah Guthrie posted a new video pleading for Nancy Guthrie's return and announced a $1 million reward for information on her whereabouts. Guthrie acknowledged her mother "may already be gone" in the recent plea for help. CBS News' Anna Schecter and Jonathan Vigliotti report.
Suspect in Nancy Guthrie case had been to the house before, source says
An image the FBI released of the suspect at Nancy Guthrie's front door, without a backpack, was captured by her Nest doorbell camera prior to the night of her abduction.
No new leads in Guthrie search: Officials
Friday marked 20 days since Nancy Guthrie, the mother of "Today" show co-host Savannah Guthrie, was last seen in her Arizona home. Pima County officials said there are no new leads in the search. CBS News reporter Andres Gutierrez is in Tucson with the latest.
Police: Nancy Guthrie case hasn't gone cold
Investigators are combing through evidence and turning to commercial genealogy companies for DNA leads in the search for Nancy Guthrie, who was reported missing on Feb. 1. CBS News' Andres Gutierrez has the latest.
FBI in touch with Mexico about Nancy Guthrie's disappearance, sources say
The FBI has been in touch with the Mexican government and Mexican law enforcement regarding the disappearance of Nancy Guthrie, law enforcement sources told CBS News.
Clues in Nancy Guthrie's disappearance 19 days in
19 days into the search for Nancy Guthrie, the Pima County Sheriff confirmed that investigators are still analyzing the DNA recovered from Guthrie's home. Jonathan Vigliotti has more.
Latest on Nancy Guthrie search Day 19
Sources tell CBS News that the FBI has been in touch with the Mexican government in the search for Nancy Guthrie. But a Mexican official says the FBI told them they don't have any leads to suggest she is there. CBS News reporter Andres Gutierrez has more.
FBI in contact with Mexico on Guthrie case
The FBI is in touch with Mexican officials regarding the search for Nancu Guthrie, law enforcement sources tell CBS News. Andres Gutierrez reports.
Accomplice not ruled out in Nancy Guthrie disappearance, Arizona sheriff says
Authorities haven't named a suspect or person of interest in Nancy Guthrie's disappearance as the search continued for a third week.
Accomplice not ruled out in Nancy Guthrie case
More than two weeks into the search for Nancy Guthrie, investigators say the only video they've recovered from the scene is the one already shared with the public. Plus, the Pima County Sheriff told CBS News that investigators have not ruled out an accomplice who may have entered Guthrie's home. Jonathan Vigliotti has more details.
Nancy Guthrie authorities working with Google
The search for Nancy Guthrie entered its 18th day on Wednesday. A potential lead to a suspect in her disappearance fell short, but authorities said they are not back to square one. Andres Gutierrez and Anna Schecter have more details.
Guthrie investigators haven't ruled out accomplice
The Pima County sheriff told CBS News that investigators have not ruled out the possibility of an accomplice in the disappearance of Nancy Guthrie. CBS News reporter Andres Gutierrez has the latest.
Latest details in Nancy Guthrie case
DNA on gloves found near Nancy Guthrie's home did not match any in the FBI's database, the agency said, but investigators are still focusing on possible evidence as the search for "Today" co-host Savannah Guthrie's mother continues. CBS News' Andres Gutierrez has the latest.
Focus on evidence in Nancy Guthrie search
Officials are still searching for a DNA match from a sample collected after a pair of gloves was found near Nancy Guthrie's home. This comes as the FBI probes gun purchases in the Tucson, Arizona, area. CBS News' Jonathan Vigliotti reports.
Nancy Guthrie case DNA probe
Investigators in the Nancy Guthrie kidnapping case are attempting to match a DNA profile recovered from a pair of gloves found near her home. CBS News' Jarred Hill reports.
How "signal sniffer" technology is being used in the search for Nancy Guthrie
The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.
No DNA match in database from gloves found during Nancy Guthrie search
The DNA profile was recovered from gloves found during the investigation into the disappearance of Nancy Guthrie in Arizona.
"Signal sniffer" inventor on Nancy Guthrie
Investigators in Nancy Guthrie's disappearance are using a device called a "signal sniffer" to try to detect transmissions from her pacemaker. David Kennedy, former NSA hacker and inventor of the pacemaker signal detector, joins CBS News to discuss his work with law enforcement in the search.
No matches for glove DNA in Nancy Guthrie search
A DNA profile recovered from gloves found during the investigation into the disappearance of Nancy Guthrie in Arizona that was submitted to a national database maintained by the FBI didn't come back with any matches, officials said. Jonathan Vigliotti has the latest.
Where Nancy Guthrie's case stands on Day 17
Authorities say DNA on gloves found in the search for Nancy Guthrie so far have not yielded any matches. CBS News reporter Andres Gutierrez has more details.
Guthrie investigators probing gun purchases
DNA tested from gloves found near the home of Nancy Guthrie did not come back with a match from inside the house or the national database, the Pima County Sheriff's Department confirmed. CBS News reporter Andres Gutierrez has the latest.
Officials: No DNA match on gloves in Guthrie case
The DNA profile recovered from gloves found in the investigation into Nancy Guthrie's disappearance did not come back with any matches when entered into a national database maintained by the FBI, authorities said Tuesday. CBS News reporter Andres Gutierrez has more.
"Signal sniffer" deployed in Guthrie search
Investigators deployed a "signal sniffer" device to help pinpoint Nancy Guthrie's location using her pacemaker as the search for the mother of "Today" host Savannah Guthrie enters its third week. CBS News' Jonathan Vigliotti has more.
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