Kenneth Iwamasa, the former live-in assistant to Matthew Perry (Friends, The Whole Nine Yards), has been sentenced to 41 months in federal prison after pleading guilty to conspiracy to distribute ketamine resulting in death, according to Variety. Federal prosecutors alleged that Iwamasa repeatedly injected Perry with ketamine despite having no formal medical training, claiming he helped obtain and administer the drug during the final weeks of the actor’s life.

Judge Sherilyn Peace Garnett handed down the sentence in federal court in Los Angeles on May 27. In addition to the prison term, Iwamasa was sentenced to two years of supervised release and ordered to pay a $10,000 fine.

Variety reports Iwamasa was the last person to see Perry alive before later discovering the actor unresponsive in a hot tub at his Pacific Palisades home on October 28, 2023. Officials previously stated that Perry died from the acute effects of ketamine combined with accidental drowning.

The sentencing marks another major development connected to the federal investigation surrounding Perry’s death. Five individuals were charged in the case, including two doctors, a drug counselor, and alleged ketamine supplier Jasveen Sangha, whom prosecutors referred to during court proceedings as the “Ketamine Queen.”

mxdwn has previously covered several developments tied to the investigation. One earlier report focused on Sangha receiving a prison sentence connected to allegations that she supplied ketamine tied to Perry’s overdose.

Another previous mxdwn report focused on former doctor Salvador Plasencia receiving a 30-month prison sentence after pleading guilty to illegally supplying ketamine connected to the case. That coverage emphasized how prosecutors alleged several individuals financially benefited from Perry’s ketamine use during the final months of his life.

During the latest sentencing hearing, members of Perry’s family and inner circle submitted victim impact statements criticizing Iwamasa’s actions and accusing him of failing to protect the actor. Prosecutors also alleged that Iwamasa acted both as Perry’s assistant and as a facilitator in obtaining ketamine.

The sentencing closes another chapter in the criminal investigation tied to Perry’s death, nearly three years after the actor’s passing at age 54.