On the night of Dec. 6, 1991, four teenage girls were found murdered in an Austin, Texas. They were found inside a "I Can't Believe It's Yogurt! Shop." They had been shot and their bodies stacked before the building was set on fire.

Eight years later, four men were arrested and two were found guilty and sentenced to death. Two of the men confessed to the murders. Later, their conviction was overturned on appeal. Did the police arrest the right ones? 

World renowned cold case detective Ken Mains will give you his opinion in this weeks episode of Unsolved no More. 

Just because a person is arrested or convicted for a crime doesn't always mean the case is solved. Just because a death was ruled an accident doesn't mean someone shouldn't be held accountable for it.  Hence, SOLVED or UNSOLVED. 

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. He 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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