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LOS ANGELES (AP/USA Today) - HBO and James Gandolfini's managers say the actor famous for "The Sopranos" has died in Italy.

He was 51.

The three-time Emmy winner possibly suffered a heart attack while on vacation in Italy, reports Varietyand Deadline.com.

Best known for his role as mob boss Tony Soprano, he recently appeared in films Zero Dark Thirty and The Incredible Burt Wonderstone. Gandolfini's current projects included Fox Searchlight's Animal Rescue, HBO's Criminal Justice and the CBS show Taxi 22.

He is survived by his wife, Deborah Lin, and a son, Michael.