Iwamasa, who admitted in court documents to administering the ketamine on the day that Perry died, pleaded guilty in August 2024 to one count of conspiracy to distribute ketamine causing death, the DOJ said. He is scheduled to be sentenced in November.

One of the doctors accused of providing ketamine to actor Matthew Perry, who died in October 2023, has pleaded guilty to four counts of distribution of ketamine, according to federal prosecutors.

One of Matthew Perry’s doctors pleaded guilty Wednesday in federal court to supplying the drug ketamine, which was a factor in the actor’s death in 2023.