Coroner: Cory Monteith’s Death Caused by Heroin and Alcohol [VIDEO]Coroner: Cory Monteith’s Death Caused by Heroin and Alcohol [VIDEO]The coroner's autopsy results have been released, and it appears as if 'Glee' star Cory Monteith died from a lethal combination of heroin and alcohol.Alyssa FitzgeraldAlyssa Fitzgerald