Ketamine Queen' Jasveen Sangha agrees to plead guilty after distributing ketamine linked to Matthew Perry's death.

Two physicians who also helped supply Perry with ketamine are awaiting sentencing. Dr. Mark Chavez, 55, of San Diego pleaded guilty to one count of conspiracy to distribute ketamine. He faces up to 10 years in federal prison at his sentencing hearing next month.

It has been one year since authorities announced that five people had been indicted for their alleged roles in the overdose deaths of “Friends” star Matthew Perry.