Brittany Murphy's husband Simon Monjack died from pneumonia, the same illness that killed his actress wife months earlier, coroner's officials said Wednesday. Monjack, 40, had a slightly enlarged heart and some prescription medications were found in his body, but not at levels that contributed to his death, Assistant Chief Coroner Ed Winter said. Monjack was found dead May 23 at the Hollywood Hills home he shared with his actress wife and her mother. Officials initially suspected a heart attack and confirmed Wednesday that Monjack died of natural causes. Winter said the deaths of British-born screenwriter and Murphy had been referred to county health officials since they died of pneumonia, but did not know if an investigation was ongoing.