Summary
- Dr. Mark Chavez pleaded guilty to conspiring to distribute ketamine in connection with Matthew Perry’s fatal drug overdose
- Chavez agreed to cooperate as prosecutors target Dr. Salvador Plasencia and Jasmine Sangha in the case
- Prosecutors detailed instances of Chavez supplying ketamine to Plasencia, who then provided it to Perry
- Perry’s assistant and an acquaintance are also cooperating with federal prosecutors in the investigation