How genetic genealogy is being used in the Nancy Guthrie case

Tonight, law enforcement hoping a key tool will help them find Nancy Guthrie. >> We believe that we may have some DNA there that may be our suspect, but we won't know that until that DNA is separated, sorted out. In an interview with our Liz Kitz, Puma County Sheriff Chris Nanos says he might be deploying genetic genealogy, which compares DNA extracted from a crime scene to DNA databases, using familial matches to narrow down the search.In the case of the unknown DNA found inside Nancy Guthri's home, the sh ...