The Last Person Charged in Matthew Perry's Death Faces Prison Time

The final chapter of the Matthew Perry ketamine case is closing in. Kenneth Iwamasa, the actor’s live-in assistant, is scheduled for sentencing on May 27, and prosecutors aren’t holding back—they’re recommending 41 months in prison plus three years of supervised release.

What makes Iwamasa’s role so damning is his proximity and knowledge. He wasn’t a peripheral figure in Perry’s life; he was the person who saw it all up close. According to court documents, Kenneth found the actor unconscious twice in the month before his death on October 28, 2023. He wasn’t just aware of Perry’s struggle with addiction—he was actively facilitating it. Prosecutors allege he helped obtain drugs, administered injections, and worked directly with Dr. Salvador Plasencia and middleman Erik Fleming to keep the supply flowing. Plasencia, the court papers claim, even showed Kenneth how and where to inject the ketamine.

The evidence of deliberate deception is particularly striking. In the days after Perry’s death, Kenneth removed and destroyed evidence: tossing vials and telling Fleming he deleted everything. That’s not the act of someone caught up in something they didn’t understand. That’s someone actively covering tracks.

Kenneth pleaded guilty in 2024 to a single charge of conspiracy to distribute ketamine resulting in death. Both Plasencia and Fleming have already been sentenced. Now it’s his turn. The sentencing on May 27 will mark the final conviction in a case that exposed how easily a trusted member of someone’s inner circle can become complicit in their destruction.