I held her until she finally fell asleep, her head heavy against my chest. Every time she twitched, my grip tightened. I thought about the man who had been my son-in-law. I thought about how he had changed the oil in April’s car, how he had gone to church, how he had seemed so normal. He was a monster who hid in plain sight, using the tools of a good man to build a prison for a child.