Traycee Lawrence

I read the first chapters and knew the killer was Sarah, why did no one question the jealous wife? And why was she quick to dismiss Adam saying he heard the car door shut and that's what woke him up. I understand that the author was building up suspense for the big reveal, but I would have like it better if Anne was the killer and she framed it on Adam so that Sarah could be distracted by his case while she takes over her position at work. My opinion but no one would have seen this coming. But good work, good writing