Jasveen Sangha, dubbed the 'Ketamine Queen,' is one of five individuals charged in connection with the fatal overdose of actor Matthew Perry, who died from the acute effects of ketamine in October 2023. Sangha allegedly supplied Perry with the drug in unmarked vials labeled as 'Dr. Pepper,' selling him 50 vials for $11,000, including the dose that caused his death. Brooke Mueller, Charlie Sheen's ex-wife, has been linked to the case as she reportedly knew both Perry and Sangha and spent time in the same rehab facility as them. Although not charged, Mueller has cooperated with the investigation, which has led to multiple arrests, including those of two doctors involved in the drug distribution. Kenneth Iwamasa, Perry's personal assistant, has pleaded guilty to conspiracy to distribute ketamine resulting in death and admitted to administering the fatal dose to Perry under the guidance of Dr. Salvador Plasencia. The investigation continues to uncover details surrounding Perry's struggles with addiction and the circumstances leading to his tragic death.