48 Hours - The DNA of a Killer: Update

Seizoen: 31 - Aflevering: 13 / 744 - Eerst uitgezonden: 16 december 2017 - Episode ID: 1615107

Police have DNA evidence in a brutal murder, but can't match a killer -- so how did a public DNA database lead police to suspect a filmmaker of murder? CBS News correspondent Anne-Marie Green investigates.