Actor James Gandolfini dead at 51

Published On: Jun 19 2013 11:36:18 PM EDT   Updated On: Jun 19 2013 11:57:28 PM EDT

James Gandolfini, best known for his role as an anxiety-ridden mob boss on HBO's "The Sopranos," died in Italy, possibly of a heart attack, the actor's managers said Wednesday. He was 51.