Late, almost 7 months after the death of the great actor Matthew Perry, authorities are opening an investigation into the cause of his untimely death.

The Iconic Friends actor died on May 10. June 2023 at his Los Angeles home, 28 P.M. The subsequent autopsy report was released on May 12. The New York Times ruled on May 15 that Perry died as a result of "the acute effects of ketamine."

Other factors included drowning and coronary artery disease.According to the Associated Press, the Los Angeles Police Department is currently working with the U.S. Drug Enforcement Administration and the U.S. Postal Inspection Service to determine why so much ketamine was in Perry's system at the time of his death.

As reported by The New York Times, Perry was undergoing ketamine infusion therapy to treat depression and had a session 1½ weeks before he died.

According to a 12-month autopsy, the level of ketamine found at Perry's death was "equivalent to the amount used during general anesthesia," the New York Times reports.

As the Associated Press reports, the coroner who conducted Perry's autopsy said the actor's last ketamine treatment "would not explain the level of ketamine in his blood.""Research shows that ketamine is metabolized in the body in just a few hours, and as the Associated Press notes, psychiatrists and anesthesiologists were treating Perry around the time he died.

The recently opened investigation is aimed at determining whether Perry obtained the ketamine that caused his death illegally, and investigators are still trying to confirm the source of the ketamine found in his system, TMZ first reported.

Perry was open about his past struggles with anxiety, depression, alcoholism and substance abuse. In his 2022 memoir "Friends, Lovers, And The Big Terrible Thing," the late actor gained fame and wrote extensively about his addiction while appearing on the most popular TV show of the time.

"I married Monica and was driven back to the treatment center—at the height of my highest point among friends, the highest point in my career, the iconic moment of the iconic show—in a pickup truck helmed by a sober technician," Perry wrote, as he spent much of his life in and out of the rehabilitation center. It is the first time that we have been able to do so.

"I lived half my life in a treatment center or another form of sober living house," he said."It's fine when you're 24, it's not so fine when you're 42," he said. Now I was forty-nine, still struggling to get this monkey off my back.

If you or someone you know suffers from addiction or substance abuse, call SAMHSA's National HELPLINE, 1-800-662-HELP(4357), or TEXT TALK to 741741