Image: Matthew Perry's mother Suzanne Morrison and her husband Keith Morrison were in court for today's hearing.
He had struggled with addiction for years, but released a memoir a year before his death during a period of being clean.
Five people, including doctors and the actor's personal assistant, have pleaded guilty to various charges connected with his death.
In December last year, Salvador Plasencia, a doctor, was jailed for two-and-a-half years for illegally supplying ketamine to Perry in the weeks before his death.
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Prosecutors wrote in March that after Sangha found out she had sold the drugs that caused Perry's death, "she didn't care and kept selling".
Sangha sold him 25 vials of ketamine, including the fatal dose, for $6,000 (£4,482) in cash four days before his death, prosecutors said. »
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