Five people including his personal assistant and a doctor from San Diego have been charged in connection with Matthew Perry's death in what prosecutors called a “broad underground criminal network” dedicated to getting the “Friends” star the powerful surgical anesthetic that killed him. The following are the five defendants charged, including a doctor from San Diego: Dr. Mark Chavez, 54, of San Diego, a physician who has agreed to plead guilty to one count of conspiracy to distribute ketamine, admitting to selling the drug to Plasencia, including ketamine that he had diverted from his former ketamine clinic Jasveen Sangha, 41, a.k.a. "The Ketamine Queen," of North Hollywood Dr. Salvador Plasencia, 42, a.k.a. "Dr. P," of Santa Monica Eric Fleming, 54, of Hawthorne, who pleaded guilty last week to one count of conspiracy to distribute ketamine and one count of distribution of ketamine resulting in death, admitting that he distributed the ketamine that killed Perry, prosecutors said Kenneth Iwamasa, 59, of Toluca Lake, Perry's live-in assistant, who allegedly conspired with Sangha, Fleming and Plasencia to illegally obtain ketamine and distribute it to Perry The doctors preyed on Perry's history of addiction in the final months of his life last year to provide him with ketamine in amounts they knew were dangerous, U.S. Attorney Martin Estrada said as he announced the charges Thursday. MORE: https://www.cbs8.com/article/news/local/california/5-people-including-2-doctors-charged-in-investigation-in-matthew-perrys-death/509-231a2e7b-b9ee-41b0-804e-bc619fdab469