The Los Angeles Police Department is investigating the source of the ketamine drug that killed actor Matthew Perry last year.
L.A. police said Tuesday that they were still looking into Perry’s death with assistance from the Drug Enforcement Administration and the U.S. Postal Service. The probe, which has been ongoing since an autopsy was released last year, is focused on “the source of the ketamine” associated with Perry’s death, Capt. Scot Williams said in an email.