You missed at least 70% of the case

As long as this case is not solved, this application will have an open end and will be updated from time to time, covering possible new evidence. But what about you? Did you do your job? Have you been at the mother's school? And in the cleaner's facilities? And in the rural Nieheim area? And in all the basements? If not, you can go back to the first decision you made and choose otherwise.
It's up to you. Maybe you have a clue about what happened now. In this case you can file a report here.