David Halberstam, a Pulitzer Prize-winning author who chronicled the Washington press corps, the Vietnam War generation and baseball, was killed in a car crash early Monday, a coroner said. He was 73. Halberstam, a New Yorker, was a passenger in a car that was broadsided by another vehicle in Menlo Park, south of San Francisco, San Mateo County Coroner Robert Foucrault said.