From Yahoo News:
George Carlin, the dean of counterculture comedians whose biting insights on life and language were immortalized in his “Seven Words You Can Never Say On TV” routine, died of heart failure Sunday. He was 71.
Carlin, who had a history of heart trouble, went into St. John’s Health Center in Santa Monica on Sunday afternoon complaining of chest pain and died later that evening, said his publicist, Jeff Abraham. He had performed as recently as last weekend at the Orleans Casino and Hotel in Las Vegas.
“He was a genius and I will miss him dearly,” Jack Burns, who was the other half of a comedy duo with Carlin in the early 1960s, told The Associated Press.