Natalie Wood’s death 36 years ago has been one of Hollywood’s biggest mysteries, but the Los Angeles Sheriff’s department has restarted its investigation as new evidence came to light in recent years. It was ruled an accidental drowning soon after the actress’s body was found along a Catalina Island beach on November 29, 1981, but the death certificate was recently changed to “undetermined” base on the revelations in Marti Rulli’s book, “Goodbye Natalie, Goodbye Splendour.”

Rulli, Natalie’s sister Lana Wood and Cold Case Research Institute director Sheryl McCollum join Nancy Grace for an in depth look at the case in this Crime Stories episode.

“This new medical, scientific evidence points to murder and points to a victim here,” Rulli said.

Wood was 43 years old when she disappeared off the yacht she shared with husband Robert Wagner, in the early morning hours on Thanksgiving weekend. Other than Wood and Wagner, actor Christopher Walken and boat captain Dennis Davern were the only people on the 60-foot “Splendour” that night.

“Crime Stories with Nancy Grace” is also a national radio show, heard on SiriusXM’s Triumph Channel 132, five times everyday. You can subscribe and download the daily podcasts at iTunes and Google Play.

[Feature Photo: Natalie Wood and Robert Wagner/AP]