Chapter 7

After the incident with the concrete truck, Mark and Doris went back to the scientist’s house and looked for more neighbors who had witnessed the incident. An old woman told them that she had heard the gunshots and immediately looked out a window, and a few seconds later saw two men and a boy left the scientist’s house and boarded a car, leaving the scene in a hurried way.

“Did you see what those men and the boy were like?” Doris asked her. “Were they white? Colored?”

“They were all white,” the old woman said. “One of the men was younger than the other, and the boy was small, about four or five years old.”

“You’re a good observer, and you also have a good memory,” Mark said. “Anything else you remember?”

The old woman made a gesture of annoyance, it seemed that the words of that detective rather than praise, offended her.

“I’m an old woman, detecti