He began to sketch Dorian's body, not as a portrait but as a diagram: the angle of the left wrist, the placement of the tongue relative to the fingers, the bruise pattern around the eyes. He worked in silence for ten minutes. Then he stopped. "The killer is right-handed," he said. "The hesitation marks on the left wrist are shallower on the right side of the cut, deeper on the left side. That's a right-handed person holding the blade at an angle.