Robert Durst, real estate heir and subject of the 2015 HBO six-part documentary “The Jinx,” told prosecutors that he was high on methamphetamines during interviews with the filmmakers.

Durst made the comments during a March 15, 2015 jailhouse interview, which was filed in L.A. County Superior Court on Friday, according to the L.A. Times.

“I was on meth, I was on meth the whole time … it should have been obvious,” Durst said, according to the transcript.

Variety has reached out to HBO for comment.

Durst is linked to the murders or, in one case the disappearance and presumed death, of three individuals — his first wife who went missing in New York in 1982; his longtime friend who was shot in Beverly Hills in 2000; and his former neighbor in Texas who Durst admitted to murdering in self-defense in 2001.

In the final moments of “The Jinx” Durst is caught on hot mic muttering, “What the hell did I do? Killed them all, of course.” The revelation led to his arrest in New Orleans on March 14, 2015 where Durst was checked into a hotel under a fake name and found with marijuana, a revolver, more than $40,000 in cash and a mask, according to the court papers. Durst is currently housed in Southern California serving a seven-year term for illegal possession of the firearm.

After his arrest Durst was taken to a New Orleans jail where he was read his Miranda rights and interviewed by nearly three hours. When asked why he did not flee the country prior to the documentary being aired, Durst replied “inertia.”

“I just didn’t really, really, really think that I was gonna end up arrested,” he said.

Since the interview, Durst has been charged with murder and is awaiting trial. He has pleaded not guilty.