The Pima County Sheriff previously said the DNA recovered from Nancy's home is mixed, which complicates the process of ...

The disappearance of Today show co-host Savannah Guthrie’s mother Nancy Guthrie remains unsolved even after investigators retrieved video footage of a possible suspect in front of her doors on the ...

DNA from gloves found two miles from the crime scene did not match any profiles in the CODIS system.

A genetic expert who helped crack Idaho killer Bryan Kohberger’s case says there’s still hope of building a DNA profile on the glove found near Nancy Guthrie’s Arizona home — even though the FBI came ...

SAN ANTONIO – The Bexar County Sheriff’s Office made a significant breakthrough in a yearlong murder investigation that had seen little progress. Stacey Dramiga, 63, was attacked, sexually assaulted ...

A national DNA database is helping to solve new and old crimes in Oklahoma. The Oklahoma State Bureau of Investigations manages the CODIS system for law enforcement across our state, allowing police ...

Here's what we know about the South Florida DNA lab chosen over Quantico to analyze evidence in the Nancy Guthrie abduction.

Nancy Guthrie has been missing for three weeks as investigators continue to pursue different avenues into her possible abduction.