"Selectman Rennie's assumption that no one had seen Brenda come to his house that morning was correct. But she was seen in her morning travels, not by one person but by three, including one who also lived on Mill Street. If Big Jim had known, would the knowledge have given him pause? Doubtful; by then he was committed to his course and it was too late to turn back. But it might have caused him to reflect (for he was a reflective man, in his own way) on murder's similarity to Lay's potato chips: it's hard to stop with just one."