Officials Open Criminal Investigation Into Matthew Perry’s Death

California police and the Drug Enforcement Administration have reportedly opened a criminal investigation into last year’s death of “Friends” star Matthew Perry.

The Los Angeles Police Department confirmed the investigation into Perry’s death to The Hollywood Reporter. In October, Perry, 54, was found dead in a jacuzzi at his home in the Pacific Palisades  — and an autopsy listed his cause of death as the “acute effects of ketamine.”

READ: ‘He could persuade people’: Matthew Perry Bought Drugs from Younger Hook-ups via Dating App, Source Says

Ketamine is an anesthetic used primarily to treat depression and other mental health problems, but it is also used recreationally. The December 15 autopsy report stated that the levels found in Perry’s blood would have led to fatal “cardiovascular overstimulation and respiratory depression,” according to The Hollywood Reporter.

Perry was reportedly undergoing ketamine therapy, and his last session was a week-and-a-half before he died. However, officials determined the levels found in his system could not have been from infusion therapy as ketamine’s half-life is no longer than four hours.

According to The Hollywood Reporter, the two agencies are investigating how Perry had so much ketamine in his system and how he obtained the drug.

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[Feature Photo: Rich Fury/Invision/AP, File]