The Godfather, Elf and Misery among others, died of a heart attack and coronary artery disease, the death certificate viewed by Deadline has confirmed.“It is with great sadness that we inform you of the passing of Jimmy on the evening of July 6,” the tweet announcing Caan’s death reads.“The family appreciates the outpouring of love and heartfelt condolences and asks that you continue to respect their privacy during this difficult time.”Several actors playing mobsters onscreen have tragically died t his year. The Sopranos actor Tony Sirico passed away at the age of 79 earlier this month, while it was announced last night (July 25) that Goodfellas star Paul Sorvino died at 83.Ray Liotta, who also starred in Goodfellas, died in his sleep at the end of May.