Did David Crowley kill his family and then himself during the holidays in 2015 or was he taken out by government officials because of his anti-govenment beliefs? Was this a murder/suicide by a depressed and radical fim maker whose passion for the "Gray State" project drove him over the edge of sanity?

Lets see what world renowned cold case detective Ken Mains thinks as he dives in the deep waters to get to the truth.

About Ken Mains: You have seen him on the History Channel tracking the Zodiac Killer and on the Discovery Science Channel investigating history's greatest mysteries. Most recently he can be seen on the Reelz Channel giving his expert opinion on the "When Friends Speak" true crime series.

Detective Mains served a combined 20 years in law enforcement and the United States Marine Corps. You read his best-selling autobiography 'Unsolved No More.' It is said he is "one of this countries greatest detectives" and the foremost authority on unsolved cold cases. He is raw, unfiltered and only cares about the truth.

The credentials are there: USMC Veteran, Bachelors Degree (Criminal Justice), Masters Degree Studies (Criminal Profiling), Patrol Officer, Undercover Narcotics, FBI Task Force, District Attorney's Office, Drug Task Force Supervisor and Cold Case Detective. He is the founder of AISOCC, where he led the worlds best investigators including the Homicide Hunter Joe Kenda, Dr. Werner Spitz, Dr. Henry Lee, Dr. Mary Ellen O'Toole and Dr. Cyril Wecht, Jim Clemente, Bob Keppel to name a few. Follow renowned Cold Case Expert Ken Mains on his mission to solve the unsolved.

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