David Frost Dies At Age 74

British broadcaster David Frost, perhaps best known for his post-Watergate interview with Richard Nixon, has died at the age of 74.

Frost died of a heart attack on Saturday night aboard the Queen Elizabeth cruise ship, where he was due to give a speech, the family said. The cruise company Cunard said its vessel had left the English port of Southampton on Saturday for a 10-day cruise in the Mediterranean. Known for incisive interviews of leading public figures, Frost spent more than 50 years as a television star. British Prime Minister David Cameron was quick to send his condolences and tweeted: "My heart goes out to David Frost's family. He could be — and certainly was with me — both a friend and a fearsome interviewer.

Frost's interview with Nixon was turned into a Broadway play and a movie.