Don’t they find his lipstick and stuff at the other crime scenes. I can’t remember clearly. I think it’s just supposed to be entertaining and shouldn’t be analyzed too closely. It would’ve been cool if they had some Laura Bow-esque point system where you actually had to put the clues together and solve the case at the end. Maybe have a courtroom trial/verdict for the end sequence where your actions affect whether it’s a guilty/not guilty verdict and what sentence he gets.