James Gandolfini has died. The Emmy-winning star of The Sopranos was 51 years old.

Gandolfini was on vacation in Italy attending the Taormina Film Festival when he suffered a possible heart attack per HBO.

Gandolfini, best known as Tony Soprano on HBO’s Sopranos, most recently appeared on The Incredible Burt Wonderstone. He also starred in Zero Dark Thirty, Not Fade Away and Killing Them Softly.