A former cop has been arrested for murders long associated with the Golden State Killer, apparently bringing the decades-old cold case to an end. Nancy Grace and co-host Alan Duke share the latest in the case. Nancy also talks with Jane Carson-Sandler -- the 5th victim, Michelle Cruz -- sister of a murder victim, Billy Jenson --an investigative journalist who completed the raw chapters of victim Michelle McNamara’s “I’ll Be Gone in the Dark,” Paul Haynes -- a researcher on McNamara’s book, and Cold Case Research Institute director Sheryl McCollum.