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Los Angeles police have claimed that they are looking into the source of the ketamine that killed actor Matthew Perry.
The actor, well-known for his part in the hit television sitcom Friends, died in his Los Angeles home last October after being discovered motionless in a swimming pool.
A post-mortem determined that his death was an accident caused by "the acute effects of ketamine". Ketamine is a sedative that can be used both recreationally and to treat depression.
The Los Angeles Police Department said it is collaborating with the Drug Enforcement Agency on an investigation into why Perry, 54, had so much ketamine in his system at the time of death.
The medical examiner wrote however that Perry's last treatment was one and a half weeks before his death and would not explain the levels of ketamine in his blood.
They added he had "reportedly been clean for 19 months". Perry regularly spoke about his battle with addiction - including a near-death experience in 2019 after his colon burst as a result of opioid use.
