Savannah Guthrie stopped by the "Today" show studios to thank colleagues who have supported her during the search for her missing mother.

Add Yahoo as a preferred source to see more of our stories on Google. DNA on gloves recovered a couple of miles from Nancy Guthrie's home near Tucson did not match to existing profiles in the CODIS ...

According to sources close to the investigation, there are concerns that DNA recovered from Nancy Guthrie's home may not yield a usable profile for comparison.

Nancy Guthrie, mother of "Today" show host Savannah Guthrie, was last seen on Jan. 31. The search for her and for answers to who or what took her from her Arizona home is now in the third week. Law ...

Investigators in Arizona are hoping that DNA found in and around Nancy Guthrie's house in Tucson could lead them to a suspect — and the missing woman. Guthrie, the 84-year-old mother of Today show ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases... Investigators in Arizona are hoping that DNA found ...

DNA recovered from inside Nancy Guthrie’s house may not provide enough evidence to help investigators identify the people behind the disappearance of the mother of “Today” show co-host Savannah ...

PHOENIX — DNA on gloves recovered a couple of miles from Nancy Guthrie's home near Tucson did not match to existing profiles in the CODIS database, officials say. The Pima County Sheriff's Department ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases... Investigators in Arizona are hoping that DNA found ...

A member of the FBI's Evidence Response Ream searches an area around Nancy Guthrie's residence in Tucson, Ariz., on Feb. 11. Police say that DNA samples have been recovered in and around Guthrie's ...