Big Developments in Matthew Perry's Death Investigation

There have been multiple arrests in the investigation into actor Matthew Perry's death, including at least one doctor.

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Law enforcement agencies executed search warrants and seized computers and phones related to the case.

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Perry had been receiving ketamine infusion therapy for depression, with the last treatment a week and a half before his passing.

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The ketamine found in his system was at levels typically used for general anesthesia during surgery.

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The ketamine he ingested was not legally prescribed, according to law enforcement sources.

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Multiple agencies, including the DEA and LAPD, conducted a multi-month criminal investigation.

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Text messages revealed discussions about Perry's desire for ketamine and arrangements to deliver it to him.

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Authorities obtained a search warrant for Brooke Mueller, who shared a treatment center with Perry, but she has not been arrested.

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Other celebrities involved in the Hollywood drug scene have been identified during the investigation, suggesting a wider issue.

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