Richard L. Sharpe, a part-time Amagansett resident who had a long career on the business side of the radio industry, died on Jan. 1 in Locust Valley, where he also had a house. He was 72. The cause was a heart attack, his family said.
Mr. Sharpe began his career as an advertising salesman before moving into national sales for large radio groups. He later ran a New York City radio representation company.