Updated:James Gandolfini, the star of HBO's award-winning hit The Sopranos, has died at the age of 51. The Hollywood actor passed away in this hospital Wednesday while vacationing in Rome. Hospital officials told Reuters that Gandolfini arrived in the late evening. Attempts to resuscitate the 51-year-old, who may have suffered a heart attack, were unsuccessful. The American-Italian is best known for his Emmy winning performance as a New Jersey mob boss, who suffered debilitating panic attacks.