It's been almost 35 years since Natalie Wood drowned during a boat trip with husband Robert Wagner and friend Christopher Walken.
Despite the fact that decades have passed since Wood lost her life under mysterious circumstances off the coast of Catalina Island, there's been a renewed interest in the circumstances of her death in recent years.
The case began making headlines again back in 2012, when Wood's death certificate was officially changed to include "mysterious circumstances" as one of the causes of her passing.
Shortly thereafter, rumors that Wood caught Wagner and Walken in bed together on the night of her death began to circulate online.
In December of 2014, Walken was questioned by police in connection with Wood's death, but insiders say the interrogation produced no new information.
Several members of Wood's family have remained persistent in their efforts to get to the bottom of what really happened on that fateful night in 1981, and the campaign to get all parties involved to participate in the ongoing investigation led to a videotaped confrontation between Wagner and Wood's sister last year:
Now, a private detective firm called Cold Case Investigative Research claims to have assembled sufficient evidence to offer to convince police to arrest Wagner for Wood's murder.
CCIR investigator Mark Rulli recently revealed to Radar Online that the firm has turned a file containing their findings over the Los Angeles Ounst Sheriff's Department, which reopened its own investigation into Wood's death in 2011.
“Natalie was married to a jealous man, who ended up robbing her of life,” Rulli tells the website.
While he's unable to confirm the rumors about Walken and Wagner being involved in a sexual relationship, Rulli says he's been able to prove conclusively that Wagner was carrying on two simultaneous affairs while Wood was still alive.
In order to avoid compromising the investigation, Rulli declined to offer forensic details, but an insider familiar with the case has assured Radar that "a bust is looming."
A spokesperson for the LAPD confirmed that the department is "fully aware" of CCIR's findings, but did not offer any further information.
It remains unclear if police have any intention of pressing charges against the 86-year-old Wagner.
We'll have further updates on this story as more information becomes available.