Coroner manager : Autopsy showed actor 's heart was enlarged when he died . Heaslip said this was evidence that Haim 's death was not caused by a drug overdose , but Brian Elias with the coroner 's office said they are waiting for toxicology tests before deciding what killed Haim . 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 .
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 .