Matthew Perry’s Former Assistant Sentenced in Ketamine-Related Death

Overview

• Kenneth Iwamasa was sentenced to about three years and nine months in federal prison on Wednesday, May 27, 2026, and received two years of supervised release plus a $10,000 fine.
• Iwamasa pleaded guilty in August 2024 to conspiracy to distribute ketamine resulting in death and testified for prosecutors as part of a plea deal.
• The Los Angeles County Medical Examiner found acute effects of ketamine to be the primary cause of Perry’s death, with drowning listed as a secondary factor.
• The federal case prosecuted five people tied to an illegal supply chain that diverted medical ketamine for outside use; sentences include Jasveen Sangha (15 years), Salvador Plasencia (about 2½ years), and Erik Fleming (two years).
• Perry’s family told the court they felt betrayed by a trusted aide who supplied and administered the drug, and the case has highlighted risks from diversion of clinic‑used ketamine and questions about caregiver responsibility and oversight.