News 27-year-old ‘American Horror Story’ actor Harry Hains’ cause of death revealed March 10, 2020 Sara M Moniuszko, USA TODAY Comments Off on 27-year-old ‘American Horror Story’ actor Harry Hains’ cause of death revealed "American Horror Story" actor Harry Hains died from an accidental fentanyl intoxication, according to the Los Angeles County Medical Examiner-Coroner.