Nation IN BRIEF : TEXAS : J.F.K. Anniversary Is Marked in Dallas

About 1,200 people marked the 29th anniversary of John F. Kennedy’s assassination in Dallas with a visit to The Sixth Floor exhibit at the former Texas School Book Depository, the site of sniper fire Nov. 22, 1963. At 12:30 p.m., the time three shots rang out as Kennedy’s motorcade rolled past, about 250 people tied green and white ribbons to trees near the “grassy knoll,” where some conspiracy theorists allege there was a second gunman. The Warren Commission determined that Lee Harvey Oswald, acting alone, fired the fatal shots from the depository. But the exhibit of nearly 400 photographs, documentary films, graphs, charts and other information on the life, death and legacy of Kennedy left Betty Lauman and her stepdaughter, Robyn, with questions: “You leave here wondering two things: ‘What would have happened had it not happened?’ and ‘Who did it?’ ”