O.J. Simpson Laughs at His Own Murder Trial as He Maintains His Innocence in Never-Before-Seen Footage: Watch

O.J. Simpson was captured laughing about his own murder trial.

In footage featured in the new docuseries, O.J. Unseen: Exploitation of Evil, which will be released on September 8, the late football star was caught on camera on set for a prank show.

Juiced was set to air more than a decade after he was found not guilty of murdering his ex-wife, Nicole Brown Simpson, and her friend Ron Goldman in 1994.

In the clips obtained by Entertainment Weekly, he was caught scoffing at the media's description of a "bloody Bronco," referring to the car Simpson drove in his infamous police chase.

"You hear them saying bloody Bronco, bloody Bronco" he said while laughing heartily as the cameras captured every moment. "Absolute b-------."

The premise of the never-released show was for Simpson to play pranks on innocent bystanders and use his newfound catchphrase inspired by his nickname, "The Juice."

"You've been juiced," he would say after surprising people dressed up as a gangster, a janitor, Elvis Presley or even an old white man.

Crew members interviewed for the upcoming documentary noted that they never expected Simpson to make light of his murder charges on set for the light-hearted prank show.

"Trained detectives went in and saw nothing, looking for blood,” Simpson said, maintaining his innocence in the unveiled footage. “All these law enforcement guys knew that the verdict would be not guilty."

The man even attempted to sell his infamous Bronco in one of the show's never-before-seen gags.

"Initially, we didn’t want anything that had to do with the murders," one crew member said. "Like, I wanted to stay far away from that.”

But Simpson would allegedly start to drink and freely open up about the trial and his ex's bloody stabbing outside of her home in Brentwood, Calif.

"I will never argue with your opinion. Don't start talking about facts. All the theories are screwed up," he slurred in one clip while sitting in the passenger seat of a car.

He even openly slammed claims that the "media was pushing to the public" that he was "a pariah."

"We just thought we were making a fun prank show, and we didn’t think anybody would start talking about murder," culture journalist Scaachi Koul explained. "What are you talking about?"

The show was ultimately shelved after crew members leaked it to the media.

"The reason they leaked it,” documentary director Rebecca Halpern told Us Weekly, "was because they felt that it was so inappropriate and irredeemable that it needed to be stopped."