Investigators have turned to genetic genealogy to identify DNA found at Nancy Guthrie's home after her kidnapping.

Genetic genealogist CeCe Moore tells PEOPLE, 'If I was the kidnapper, I would be extremely worried right now' ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases — is helping to solve active cases as well.

Investigators in the Nancy Guthrie case have turned to genetic genealogy as they try to make the most of potential DNA ...

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

Investigators have obtained a DNA sample from a glove found near Nancy Guthrie's home, appearing to match the masked prowler seen before her abduction.

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases — is helping to solve active cases as well.