James Gandolfini, best known for his role of mob boss Tony Soprano in HBO's "The Sopranos," died of a "massive heart attack" in Italy, according to media reports Wednesday. Gandolfini, 51, was recently seen in the 2012 film "Zero Dark Thirty," about the hunt for Osama bin Laden.
Updated media reports state his sudden death was due to cardiac arrest.
He is survived by a wife and two children.
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