PLEASE NOTE: EDIT CONTAINS MATERIAL WHICH WAS ORIGINALLY 4:3<br/> <br />James Gandolfini, the burly actor best known for his Emmy-winning portrayal of a conflicted New Jersey mob boss in the acclaimed HBO cable television series "The Sopranos," has died while vacationing in Rome, Italy, the network said on Wednesday (June 19).<br/> <br />Gandolfini, 51, who began his career in live theater in New York, died of a possible heart attack, HBO spokeswoman Mara Mikialian told Reuters.<br/> <br />Since "The Sopranos" ended its run in 2007, Gandolfini has appeared in a number of big-screen roles, including the espionage thriller "Zero Dark Thirty" and the comedy "The Incredible Burt Wonderstone."<br/> <br />At the time of his death, Gandolfini had been working on an upcoming new HBO series titled "Criminal Justice."
