ARTFEED — Contemporary Art Intelligence

Matthew Perry's assistant sentenced to 41 months for fatal ketamine injection

other · 2026-05-27

Kenneth Iwamasa, the personal assistant who injected Matthew Perry with a fatal dose of ketamine, was sentenced to 41 months in federal prison on Wednesday. Judge Sherilyn Garnett delivered the sentence in Los Angeles. Iwamasa injected Perry at the actor's request, then left to run errands and returned to find Perry dead in a hot tub. An autopsy concluded Perry died from the acute effects of ketamine, which caused him to lose consciousness and drown. Iwamasa apologized in court, saying he will forever regret his illegal acts. The sentencing closes the prosecution of five people who admitted roles in Perry's death.

Key facts

  • Kenneth Iwamasa sentenced to 41 months in federal prison
  • Iwamasa injected Matthew Perry with ketamine at his request
  • Iwamasa left to run errands and returned to find Perry dead in a hot tub
  • Perry died from acute effects of ketamine, causing loss of consciousness and drowning
  • Judge Sherilyn Garnett delivered the sentence
  • Iwamasa apologized to the Perry family in court
  • Five people admitted to playing roles in Perry's death
  • Perry died in October 2023 at his Los Angeles home

Entities

Artists

  • Matthew Perry

Locations

  • Los Angeles
  • United States

Sources