Matthew Perry’s sisters have accused the late actor’s assistant Kenneth “Kenny” Iwamasa of “repeatedly” injecting him with ketamine on the day of Perry’s death in October 2023.
“He injected my brother with a lethal dose of ketamine and left him in a hot tub to die,” Madeline Morrison said in a victim impact statement filed ahead of Iwamasa’s sentencing on Wednesday.
“It’s hard to put into words the sense of betrayal I felt when I learned what Kenny had done,” she continued, according to the filing obtained by Page Six.
Iwamasa allegedly lied to the “Friends” alum’s relatives about what happened the day he died at his home in Pacific Palisades, California.
“Everything I believed and everything Kenny told us about the day he died was a lie,” Madeline continued. “I could never have imagined that someone my brother considered family would betray him in such an unimaginable way.”
Madeline recalled that Iwamasa was “manic and restless” in the days leading up to Perry’s funeral.
“The person responsible for my brother’s death stood up and spoke to those who loved him most,” she wrote. “It was like a cruel joke that I still don’t like. He not only took my brother’s life, but he also tarnished our last memories of saying goodbye.”
As for Perry’s sister, Caitlin Morrison, she wrote, “We will never know if the lethal dose of ketamine was simply reached by chance.”
“But I know that when Kenny left home, he was doing one of two things,” she wrote. “He was either getting away with something he knew he had done, or he was intentionally abandoning a vulnerable person in a dangerous situation.”
Perry’s mother, Suzanne Morrison, also released a statement, writing that Iwamasa’s “most important job…was to be a companion and protector to her son as he battled addiction.”
“His number one responsibility is to make sure Matthew stays the way he wants him to be: drug-free,” she wrote. “And when he killed my son, he kept looking at me with sharp eyes.”
Iwamasa was one of five people convicted of involvement in Perry’s tragic death.
Two months after the “Whole Nine Yards” star was found dead in his bathtub, his cause of death was ruled to be “the acute effects of ketamine,” as well as drowning and other factors.
Mr Perry, who had previously struggled with drug addiction, was receiving “ketamine drip therapy” before his death, but Mr Iwamasa “repeatedly” injected him with illegal amounts of the drug “without any medical training”.
Iwamasa, along with Dr. Mark Chavez, drug counselor Eric Fleming, “queen of ketamine” Jasbeen Sangha, and Dr. Salvador Plasencia, were later indicted in connection with Perry’s death in August 2025.
Mr. Iwamasa, Mr. Chavez and Mr. Fleming pleaded guilty, and Mr. Sangha and Mr. Placencia entered guilty pleas.
Mr. Chavez was sentenced to eight months of house arrest, and Mr. Sangha was sentenced to 15 years in prison for supplying Mr. Perry with ketamine and running a drug trafficking business.
Placencia was sentenced to 30 months in prison, and Fleming was sentenced to two years in prison and three years of supervised release.
