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The Los Angeles Police Department, the Drug Enforcement Agency, and the U.S.
Postal Service are working together to investigate the cause ofMatthew Perrys death, the L.A.TimesreportedMay 21.
TheFriendsactordied of a ketamine overdose on October 28.
Now, a criminal investigation is being launched to figure out the source of the drugs.
Perry was, at one point, on a regular schedule of ketamine infusions.
