Dr. Al Carlisle was a famous clinical psychiatrist perhaps best known for being the first person to evaluate Ted Bundy after his arrest, while Carlisle was working at the Utah State Prison in 1975. From then on, he began conducting extensive interviews with Bundy, Manny Cortez, Arthur Gary Bishop, and other infamous killers. Now, his more than 650 hours of inmate tapes have been collected and edited into Oxygen True Crime’s documentary seriesViolent Minds: Killers on Tape.

The seventh episode of thetrue crimeseries is set to premiere on Sunday, May 7th at 7pm ET/PT. It’s also available to watch in real-time on FuboTV or DirecTV Stream, and can be watched after the fact on various digital platforms. This new episode, “Don York,” follows Carlisle’s daring hypnosis treatment with the titular killer that reveals the truth. The synopsis explains, “When a new inmate claims he can’t remember the attempted murder of his wife and murder of the man she was having an affair with, Dr. Carlisle uses hypnosis to access his apparent alternate personality, Dan Hell.”

You can check out an exclusive clip below.

Hypnotizing the Violent Minds of Killers on Tape

Don York’s case was a curious one which spent a long time in the justice system. In a 1997 interview with theDeseret News, York’s volunteer defense attorney, Jerrold McPhee, said, “Every time I turn around, some new twist comes up that I think just couldn’t be true. But it is. It keeps getting more bizarre as it goes along. I’ve been dealing with it for seven years, and I’m the fifth attorney.”

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York suffered from multiple personality disorder, and in many ways was a model citizen (and then model prisoner), but had one personality, “Dan Hell,” which harbored an immense amount of violence, rage, and hatred. Dr. Carlisle turned to hypnosis in order to clear up some of the inconsistencies and mysteries of the case, andViolent Minds: Killers on Tapeuses the actual recordings of his sessions with York, visually dramatized, to tell the strangetrue crime story.

The true crime genre has exploded in recent years, andViolent Minds: Killers on Tapepicks up on the same frequencies as the massive success had by theConversations with a Killerseries, not to mention the plethora of other true crime docuseries and dramas airing at the moment. The Oxygen show, however, is grounded in the realism of the actual interview tapes, and delves into aspects and cases which haven’t been explored in other popular true crime series.

The new episode of Oxygen True Crime’s series, “Don York,” premieres Sunday, May 7 at 7pm ET/PT. If you’d like to get a better sense ofViolent Minds: Killers on Tape, you can check out this in-depth look at how the show details never-before-heard interviews with Ted Bundy in one of their episodes below: