Bullet points of Doctor charged in overdose death of Matthew Perry expected to plead guilty
- Dr. Mark Chavez, 54, of San Diego, is expected to plead guilty to conspiring to distribute ketamine
- Chavez agreed to cooperate with prosecutors as they pursue others, including Dr. Salvador Plasencia and Jasveen Sangha
- Perry's assistant and an acquaintance of the actor also admitted to helping him obtain and inject ketamine