Deeply disturbed by the accounting of American deceit in Vietnam, he approached The New York Times. The disclosures that followed rocked the nation. Daniel Ellsberg, a military analyst who after experiencing a sobbing antiwar epiphany on a bathroom floor made the momentous decision in 1971 to disclose a secret history of American lies and deceit in Vietnam, what came to be known as the Pentagon Papers, died on Friday at his home in Kensington, Calif. He was 92. The cause was pancreatic cancer, his wife and children said in a statement.