The details surrounding the death of “Friends” actor Matthew Perry are becoming clearer through recently unsealed court documents, which describe his last days.

The court files outline the final chapter of Perry’s very public fight against addiction, which included a relapse in 2023 that ultimately led to his death from “the acute effects of ketamine” in October of the previous year.

This week, California prosecutors announced that five individuals have been charged in relation to Perry’s death, as they were involved in “distributing ketamine to Perry in the weeks leading up to his passing.”

One of those charged is Perry’s live-in assistant, Kenneth Iwamasa, who described himself as “Batman’s butler” in court documents. Iwamasa, aged 59, pleaded guilty on August 7 to one count of “conspiracy to distribute ketamine resulting in death and serious bodily injury,” risking a sentence of up to 15 years in prison.

Investigators allege that Iwamasa worked with others to buy over $55,000 worth of ketamine to administer to Perry without the necessary medical credentials. Ketamine is known both as an anesthetic and a recreational drug with psychedelic properties.

At the time of his death, Perry was undergoing ketamine infusion therapy to help with depression and anxiety. This medication, which can cause hallucinations and alter sensory perceptions, has been used as a fast-acting antidepressant and is FDA-approved as an anesthetic.

Dr. Salvador Plasencia, 42, and Jasveen Sangha, 41, referred to as the “Ketamine Queen” of North Hollywood, were also charged with 18 offenses related to Perry’s death.

Additionally, co-conspirators Dr. Mark Chavez and Erik Fleming, both aged 54, have been charged along with Iwamasa. However, it is Iwamasa’s plea agreement that reveals details about Perry’s last moments and his secret battle with ketamine addiction leading up to his finding in a hot tub at his Pacific Palisades residence in Los Angeles.

Matthew Perry suffered after a ‘large dose of ketamine’ two weeks before his death

On September 30, Iwamasa was trained on how to inject ketamine after Dr. Plasencia, known colloquially as “Dr. P,” gave Perry two shots of the drug and instructed Iwamasa on how to make the injections, leaving a vial behind for him. For several days, Iwamasa communicated with co-conspirators in coded language to acquire additional ketamine.

However, two weeks prior to his death on October 12, it is reported that Plasencia administered “a large dose of ketamine” which caused Perry to experience a “medical reaction” that elevated his blood pressure, resulting in him being unable to move or speak.

According to the plea agreement, Plasencia supposedly advised Iwamasa with a remark, “let’s not do that again.”

The court documents also indicate that Iwamasa and Perry had contemplated a break from using ketamine; Plasencia, noted as “co-conspirator 1″ in court files, texted Iwamasa: “Hi. I know you mentioned taking a break. I have been stocking up on the meanwhile. I am not sure when you guys plan to resume but in case it’s when I’m out of town this weekend, I have left supplies with a nurse of mine.”

Nevertheless, investigations reveal that Iwamasa should never have injected Perry at all.

“Shoot me up with a big one”: Investigators claim Matthew Perry received a fatal dose of ketamine within five hours

On the day of Perry’s death, October 28, 2023, Iwamasa reportedly injected him with ketamine at 8:30 a.m., then again at 12:45 p.m. while Perry watched a film. Later, about 40 minutes after that, Perry requested Iwamasa to ready the hot tub and to “shoot me up with a big one,” referencing yet another ketamine injection.

Iwamasa proceeded to administer a third dose of ketamine to Perry “in or near the jacuzzi.” Authorities suggest Perry received three injections within a span of five hours.

As per the plea agreement, Iwamasa departed from Perry’s residence, leaving the actor alone to run some errands, only to return and discover Perry unresponsive, face down in the jacuzzi. The Los Angeles Fire Department arrived at Perry’s Pacific Palisades home at 4:07 p.m., finding “an adult male unconscious in a stand-alone jacuzzi.” Officers on the scene declared him dead at 4:17 p.m.

“A quick medical evaluation, unfortunately, showed that the man had passed away before the first responders arrived,” stated Nicholas Prange, a spokesperson for LAFD, in a statement given to YSL News on October 30 of the previous year. In December, over a month after Perry’s death, the autopsy report released by the Los Angeles County Medical Examiner’s office, which was obtained by YSL News, classified the cause of death as an accident, attributing it to “the acute effects of ketamine.”

Days prior to Perry’s untimely death, he shared a picture on Instagram depicting himself in a jacuzzi with large headphones. He captioned the image with, “Oh, so warm water swirling around makes you feel good? I’m Mattman.”

Perry spoke about his addiction battles in his book: ‘I never gave up’

The concluding chapter titled “Batman” in Perry’s New York Times best-selling book, “Friends, Lovers, and the Big Terrible Thing,” summarizes his long-standing struggle with sobriety, alcoholism, and drug dependency. The last segments of the memoir describe the tranquility he discovered at his ocean-view home in California while being sober.

“Addiction — the immense, dreadful issue — is too formidable for anyone to conquer alone. However, united, and one day at a time, we can overcome it,” Perry expressed. “The one thing I managed to grasp was that I never lost hope.”

The final words of the book state: “One day, you may be asked to act in a significant way. So, prepare yourself and when the moment comes, just ponder ‘What would Batman do?’ and act accordingly.”