The journalist died of congestive heart failure at a retirement home in Philadelphia, Hoyt said.
Boyd spent 20 years as Washington bureau chief of Knight Ridder, once the nation's second-largest newspaper chain with properties like The Philadelphia Inquirer and Miami Herald. He witnessed the secret U.S. bombing of Cambodia during the Vietnam War and received a tour of the Bay of Pigs from Cuban leader Fidel Castro.
At 65, Boyd became a science writer and traveled with a scientific expedition to the South Pole.
He is survived by his wife and five children.
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