Riley was just packing up, looking out of the window, when he noticed Van going past. Something set alarm bells going off in his head as he checked the file he had on his desk. They had a file on the boy, one of Riley's colleagues had been trying to track him. He picked up his gun and headed out of the building, stopping to put his files in his car before following Van. He knew he had to stay far enough from him to avoid arousing suspicion, but he also needed to get him away from population centres, if something went wrong he couldn't risk harming civilians.