'Ketamine Queen' and cover-ups: Five things discovered in the Matthew Perry probe

- Investigators revealed that Matthew Perry had high levels of ketamine in his blood, which should not have been present since his last therapy session over a week prior. - A year-long investigation led to the arrest of five individuals, including medical doctors and Perry's assistant, linked to an underground ketamine dealing network. - Perry's assistant, Kenneth Iwamasa, pleaded guilty to conspiring to distribute ketamine causing death, while other suspects face various charges related to drug distribution and falsifying records. - Authorities discovered that Jasveen Sangha, known as the 'Ketamine Queen,' allegedly supplied the ketamine that led to Perry's death and was involved in another overdose death in 2019. - Perry's legacy continues through the Matthew Perry Foundation, which aims to help others struggling with addiction, fulfilling his wish to be remembered for his efforts to assist others. Source: [BBC](https://www.bbc.com/news/articles/c89wgv98925o)