"She did not leave on her own, we know that," police said on Monday.

The Pima County Sheriff’s Department confirmed DNA samples from the home of Nancy Guthrie belong to her and that the department is investigating ransom notes connected to the case.

With the rise of DNA ancestry tests, it’s easier than ever to learn about your family history and connections. Today, there are many DNA testing services to choose from. They're easy to use. You’ll ...

U.S. Customs and Border Protection initiated Monday a limited, small-scale pilot program to assess the operational impact of proposed regulatory changes that would require the collection of DNA ...