India, Aug. 3 -- Veteran American actor Vincent Pastore, best known for playing Salvatore "Big Pussy" Bonpensiero in crime drama The Sopranos, has died at the age of 80. He was found unresponsive at his home on City Island in the Bronx, New York, on August 1 after friends checked on him when they had not heard from him for several days. Authorities said there were no signs of foul play and believe he died in his sleep. The exact cause of death is under investigation. His representatives confirmed the news. Longtime manager Robert Attermann, who represented Pastore for more than three decades, remembered him as a loyal friend with a generous heart. Tributes also poured in from his The Sopranos co-stars, including Jamie-Lynn Sigler, Michael Imperioli and Lorraine Bracco. HTC...