LOS ANGELES (AP) — A doctor who was a primary target in the sweeping investigation of actor Matthew Perry’s overdose death pleaded guilty Wednesday to supplying the “Friends” star with ketamine despite knowing he was a struggling addict.

Dr. Salvador Plasencia became the fourth of the five people charged in connection with Perry’s death to plead guilty. He and a woman prosecutors say was a major ketamine dealer faced the most serious charges after Perry was found dead in the hot tub of his Los Angeles home on Oct. 28, 2023.

Plasencia stood next to his lawyer and said “guilty” four times for four different counts before Judge Sherilyn Peace Garnett in federal court in Los Angeles.

Plasencia, 43, was to have gone on trial in August until the doctor agreed last month to plead guilty to four counts of distribution of ketamine, according to the signed document filed in federal court in Los Angeles.

The charges can carry up to 40 years in prison. He is likely to be sentenced to much less, but there is no guarantee in his agreement.

He spoke only to answer the judge’s questions. When asked if his lawyers had considered all the possibilities of pleas and sentencing in the case, Plasencia replied, “They’ve considered everything.”

“Dr. Plasencia is profoundly remorseful for the treatment decisions he made while providing ketamine to Matthew Perry,” the doctor’s attorney, Debra White, said in an emailed statement after the hearing. “He is fully accepting responsibility by pleading guilty to drug distribution. Dr. Plasencia intends to voluntarily surrender his medical license, acknowledging his failure to protect Mr. Perry, a patient who was especially vulnerable due to addiction.”