A forthcoming docuseries will delve into the haunting true events of the Hollywood Wonderland Massacre, a quadruple murder involving a drug lord, a pornographic actress, and the partner of Liberace that has baffled investigators to this day.

Decades after the tragic incident, renowned crime writer Michael Connelly has immersed himself in the details of the case for an upcoming MGM+ television series called “The Wonderland Massacre & The Secret History of Hollywood.”

During the 1970s, a notorious group of drug traffickers, known as The Wonderland Gang, rose to infamy as one of the leading cocaine suppliers in the city of Los Angeles, garnering both respect and fear.

But on July 1, 1981, their reign was cut short when three of the gang’s top members, as well as one of their lovers, were found brutally beaten to death in the Hollywood Hills home that acted as their base.

As police began their investigation, they uncovered the victims had a dark history and a slew of prominent figures as rivals – only making the already puzzling case more murky.

The chilling murders confounded investigators for decades – and in true Hollywood fashion, it is yet to be solved and shrouded in mystery.

Michael – who was a young crime reporter with the Los Angeles Times when the crime took place – talks with the original detectives, prosecutors, and undercover cops from the case, hoping to shed new light onto the case.

In the four-episode docuseries, he searches for key details about the horrific quadruple murder in an attempt to uncover what really happened that night in the Hollywood Hills. 

On July 1, 1981, police discovered the bodies of Ron Launius, William ‘Billy’ Deverell, Joy Miller, and Barbara Richardson inside a townhouse located at 8763 Wonderland Avenue in Laurel Canyon.

The bodies were all brutally beaten by what police believed to be hammers and metal pipes, and it was later determined that they died from extensive blunt-force trauma injuries.

Ron’s wife, Susan, was also attacked but survived – barely. Susan sustained a series of horrific injuries that resulted in her needing emergency surgery to remove part of her skull.

Investigators quickly discovered that each of the victims had gruesome pasts filled with multiple run-ins with the law and even a murder charge.

Ron had been arrested in 1974 for the killing of a police drug informant, but the charges were later dropped after the key witness in the case died in an unrelated shootout.

At the time of his death, he was a person of interest in over two dozen other homicide cases. 

As for Billy, he had been taken into custody 13 different times due to drug-related charges, while Joy, Billy’s girlfriend, had been arrested seven times during her years in the gang.

It was believed that Barbara was not part of the gang, and that she was only there at the time of the murder because she had become romantically entangled with a different member of the group.

Police also found out that the victims had been involved in an armed robbery of one of the biggest crime barons of all time, just two days before their deaths.

On June 29, 1981, Ron, Billy, and two other Wonderland Gang members broke into the home of Eddie Nash, a successful nightclub owner, drug dealer, and rival gang leader.

It’s been said that they handcuffed Nash, shot his bodyguard, and stole more than $1 million in drugs, cash, and jewelry from him. 

Immediately, police began to suspect that Eddie had murdered the four members as revenge for the robbery.

But soon, another suspect arose: porn actor John Holmes, whose palm print was discovered at the crime scene.

It was said that John, a well-known adult film star at the time, often bought drugs from the Wonderland Gang. 

He was arrested and charged with four counts of murder in March 1982.

Prosecutors believed he killed the members of the Wonderland Gang after he helped them rob Eddie but didn’t get his share of the loot.

However, his lawyers claimed that John was actually a victim in the case, as he had been forced into helping the real killers.

John was acquitted of all charges in June 1982, after an extremely publicized trial, leaving investigators back at square one.

For eight years following John’s trial, the case sat unsolved, but in 1990, police arrested Eddie and claimed he had orchestrated the murders.

During his trial, Scott Thorson, the former boyfriend of acclaimed musician Liberace, claimed that he witnessed Eddie beating John until he gave up the names of the people who had robbed him.

The jury was divided and couldn’t agree on a verdict, forcing a mistrial. He was tried again a year later, and this time acquitted.

Eddie was later arrested again in 2000 after police claimed he had bribed a juror during his first trial.

He reached a plea deal in September 2001, and ultimately confessed to ordering his associates to break into the Wonderland home in an attempt to get back his stolen property.

However, he insisted he never told them to murder the gang members. 

Eddie was found guilty of money laundering and received four-and-a-half years in prison.

While it’s now known that Eddie encouraged his gang members to enter the Wonderland home that night, what happened inside is still unknown. And the men who committed the killings still walk free.

Michael interviewed Scott at length for the series, believing he may hold important clues to solving the mystery.

As per the press release for the film, he set out to ‘pin down the facts of his many larger-than-life and stranger-than-fiction stories.’

Scott spent the last decade in prison after failing a drug test while on probation for burglary; he passed away from cancer last month at age 65.

The Wonderland Massacre & the Secret History of Hollywood premieres on September 8, 2024 at 10pm ET/PT on MGM+.