The Oswald shadings, the multiple images, the split perceptions--eye color, weapons caliber--these seem a foreboding of what is to come. The endless fact-rubble of the investigations. How many shots, how many gunmen, how many directions? Powerful events breed their own network of inconsistencies. The simple facts elude authentication. How many wounds on the President's body? What is the size and shape of the wounds? The multiple Oswald reappears. Isn't that him in a photograph of a crowd of people on the front steps of the Book Depository just as the shooting begins? A startling likeness, Branch concedes. He concedes everything. He questions everything, including the basic suppositions we make about our world of light and shadow, solid objects and ordinary sounds, and our ability to measure such things, to determine weight, mass and direction, to see things as they are, recall them clearly, be able to say what happened.