Coroner manager : Autopsy showed actor 's heart was enlarged when he died . Coroner told Haim 's mother that he suffered from pulmonary congestion , Coroner said . Coroner 's official said they are awaiting toxicology tests before ruling on cause of death . Coroner , who struggled for month with drug addiction , died 5:15 a.m .
Corey Haim 's manager : Autopsy showed actor 's heart was enlarged when he died . Coroner told Haim 's mother that he suffered from pulmonary congestion , Mark Heaslip said . Coroner 's official said they are awaiting toxicology tests before ruling on cause of death . Haim , who struggled for decades with drug addiction , died early Wednesday .