Kenneth Iwamasa, the former personal assistant of actor Matthew Perry, has pleaded guilty to conspiracy to distribute ketamine resulting in death. This tragic development occurs following Perry’s untimely demise on October 28, 2023, at the age of 54. His death was ruled to be caused by the acute effects of ketamine, a powerful anaesthetic.
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In a victim impact statement shared with PEOPLE by Suzanne Morrison, Perry’s mother, she expressed deep sorrow over the loss of her son and directed criticism at Iwamasa for allegedly enabling Perry’s struggles with addiction rather than supporting him. Morrison’s poignant words reveal her belief that the assistant was meant to act as a safeguard for Perry during his battle with substance abuse.

The Department of Justice (DOJ) highlighted Iwamasa’s alarming actions, stating that he administered multiple injections of ketamine to Perry on the day he died, despite lacking any medical qualifications. It was reported that on that fateful day, Perry had asked Iwamasa to give him a significant dose of the drug. After running some errands, Iwamasa returned to discover Perry’s lifeless body submerged in the hot tub.
According to a plea agreement, Iwamasa’s actions could land him a prison sentence of up to 15 years, with his sentencing scheduled for May 27. This case has opened discussions about the responsibilities of those close to individuals grappling with addiction, raising critical questions on the ethics involved.
Morrison’s heartfelt statement laid bare her pain and what she perceived as a betrayal. She had thought Iwamasa understood the severity of her son’s addiction and would protect him. “His most important job was to be Matthew’s companion and guardian,” Morrison articulated. Instead, she asserts that Iwamasa’s behaviour amounted to complicity in her son’s drug use, saying he facilitated drug access and administered it despite witnessing the dangers involved.
In the aftermath of Perry’s passing, Morrison claimed Iwamasa exhibited unsettling behaviour, seeking to maintain a connection with her while appearing to assume a role of a supportive figure. “He kept a sharp eye on me,” she recounted, mentioning how he would send her songs and seemingly attempt to console her during a time of immense grief. However, her retrospective view of him was decidedly negative, accusing him of manipulating the situation to present himself in a favourable light during Perry’s funeral.
In her comments, Morrison described the harrowing scene of her son’s death, depicting the despair of waiting outside while media helicopters circled above, keen to document the tragedy. “And then one night he was just a body, lying all but naked on the cold, damp grass of his backyard,” she wrote, encapsulating the heartbreak of losing a child to addiction and the associated stigma.
Iwamasa was one of five individuals charged in relation to Perry’s drug-related death. They included Jasveen Sangha, Erik Fleming, and Dr. Salvador Plasencia, who all faced various charges connected to the illegal distribution of ketamine. Sangha received a 15-year prison sentence in April for maintaining a drug-involved premises and related charges.
Fleming, who was acquainted with Perry, was sentenced to two years in federal prison earlier this year after pleading guilty to conspiracy charges. Dr. Plasencia also pleaded guilty to multiple counts of distribution and has begun serving a two-and-a-half-year sentence. These cases highlight the broader issues surrounding drug abuse and the individuals enabling it.
The tragic circumstances surrounding Perry’s death raises an important conversation about accountability and support structures for those battling addiction. Morrison emphasised that a mother’s grief does not diminish over time. “Closure does not exist,” she said, reminding the public of the lasting heartache that follows such devastating losses.
The distressing narrative of Matthew Perry and the events surrounding his death brings to light the urgent need for open discussions about addiction, its enabling factors, and the role of support networks. In the face of this ongoing issue, resources such as the SAMHSA helpline stand ready to assist those in need.
