Kenneth Iwamasa sentenced to 41 months for Matthew Perry ketamine death

Matthew Perry’s live-in assistant, Kenneth Iwamasa, was sentenced to 41 months in federal prison on Wednesday for conspiring to distribute ketamine to the actor, according to the U.S. Attorney’s Office.

In addition to the three-year prison sentence, United States District Judge Sherilyn Peace Garnett also fined Iwamasa $10,000.

Iwamasa, 61, injected Perry with ketamine multiple times, including the fatal dose that ended his life in October 2023.

Victim impact statements submitted by Perry’s sisters, Caitlin and Madeline Morrison, described Iwamasa as a man who “left her to die in the hot tub.” people magazine.

MATTHEW PERRY’S FAMILY CONDEMNED THE ‘STARVING JACKALS’ WHO ABUSED THE ACTOR AND ASKED THE JUDGE TO GIVE THE MAXIMUM SENTENCE

“It’s hard to put into words the feeling of betrayal I felt when I found out what Kenny had done,” Madeline wrote.

“In many ways, I felt like my brother had died again. Everything I believed about the day he died, everything Kenny told us, was a lie.”

He added, “The idea that someone my brother considered family would betray him in such an unimaginable way was something I could never have imagined.”

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Madeline recalled one of the “most surreal and heartbreaking experiences” of her life when she chose the clothes in which Perry would be buried.

“I remember how manic and unsettled Kenny looked. He repeatedly gave his version of events without being asked, as if he were being interviewed rather than mourning the death of a friend,” she wrote.

“Friends” actor Matthew Perry died in October 2023 from the acute effects of ketamine, according to toxicology and autopsy reports. (Getty Images)

According to the United States Attorney’s Office, Matthew Perry’s assistant, some say Dr. He obtained photographs of ketamine lozenges obtained from a fraudulent prescription written by Chavez. (US Attorney’s Office)

“He was actually trying to distract us from the truth: He had injected my brother with a lethal dose of ketamine and left him to die in the hot tub.”

Iwamasa’s presence at Perry’s funeral was equally difficult for the family.

“Kenny even spoke at Matthew’s funeral,” he wrote. “The person responsible for my brother’s death stood up and addressed the people who loved him most. It’s like a cruel joke that I’m still dealing with. Not only did he take my brother’s life, he tainted our last memories of saying goodbye.”

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Perry’s mother, Suzanne, wrote: “Kenny’s most important job ever was to be my son’s friend and protector in his battle with addiction. His number one responsibility was to make sure Matthew remained what he wanted to be: drug-free.”

“And when he killed my son, he set his sights on me.”

Iwamasa became the fifth and final defendant convicted in connection with Perry’s death; Defendants include the “Queen of Ketamine” Jasveen Sangha, Dr. Salvador Plasencia, MD. Mark Chavez and drug dealer Erik Fleming were also present.

Jasveen Sangha, known as the “Ketamine Queen”, was sentenced to 15 years in prison. (Jojo Korsh/BFA.com/Shutterstock)

‘Friends’ star passed away Authorities confirmed this to Fox News Digital following an apparent drowning in the hot tub at his Pacific Palisades home on October 28, 2023. He was 54 years old.

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Iwamasa supplied dozens of vials of the dissociative drug ketamine over several weeks and was responsible for administering multiple injections on the day Perry died, according to his plea agreement with the Justice Department.

At one point, the defendants distributed “20 vials for approximately $50,000 in cash” to Perry by having Iwamasa distribute the drug to the actor, said Martin Estrada, U.S. Attorney for the Central District of California.

During another sale, dealers “took advantage of Mr. Perry” by selling “approximately 50 vials of ketamine for approximately $11,000 in cash.”

Dr. Mark Chavez surrendered his medical license in November 2024. (Patrick T. Fallon/AFP)

Dr. Salvador Plasencia surrendered his medical license in September 2025. (Robyn Beck/AFP)

Iwamasa used multiple sources to secure Perry’s medication, purchasing more than $55,000 worth of ketamine over the course of almost a month. Perry’s death from overdose At home in October 2023.

Perry was identified by Dr. Iwamasa as a source of ketamine. He was introduced to Salvador Plasencia. Dr. Plasencia, who received ketamine from Mark Chavez, allegedly taught the assistant how to inject Perry with ketamine. Chavez allegedly previously operated a ketamine clinic and submitted a fraudulent prescription in the name of a former patient to secure the drug.

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Beginning on September 30, Plasencia met with Perry and injected Perry with “approximately two doses of ketamine.” Pacific Fences. He then gave Iwamasa instructions “where to inject” into Perry’s body and then left a vial of ketamine “with liquid still in it.” Iwamasa paid Plasencia approximately $4,500 in cash.

Throughout the communication, Iwamasa and the defendants used code words such as “Dr Pepper,” “cans,” and “bots” or “bottles” to describe the drug.

Matthew Perry’s mother, Suzanne Morrison, said Iwamasa had only one responsibility: to keep the actor “drug-free.” (Damian Dovarganes/AP)

On October 10, Plasencia met Iwamasa in a parking lot in Long Beach and injected Perry with ketamine while he was sitting in the backseat of the car. Two days later Perry went for a visit. ketamine clinic at a doctor’s office before returning to his home, where Plasencia administered another “large dose” of dissociative medication.

Plasencia claimed that Perry experienced an adverse medical reaction that caused a sudden increase in his blood and caused his body to “freeze”, leaving Perry unable to move or speak. He allegedly told Iwamasa, “Let’s not do this again,” before leaving additional vials of ketamine at Iwamasa.

The day before Perry died, Plasencia allegedly texted Iwamasa: “Hi, I know you mentioned taking a break. I was stocking up in the meantime. I don’t know when you plan to resume, but I left the supplies with a nurse of mine in case I’m out of town this weekend.”

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Authorities alleged Iwamasa gave Perry injections six to eight times a day between Oct. 24 and Oct. 27. Pleaded guilty to one count of distribution conspiracy on August 7 Ketamine causes death.