Salvador Plasencia joins three other defendants, including another doctor, who agreed to plead guilty in 2024 following the death of the "Friends" star.

One of the doctors accused of providing ketamine to actor Matthew Perry, who died from an overdose in October 2023, has agreed to plead guilty to four counts of distribution of ketamine, a plea agreement filed Monday shows.

Dr. Salvador Plasencia agreed to plead guilty to four counts of distribution of ketamine to Matthew Perry. He faces up to 40 years in prison.