The car seat did not have an alarm system. The car was also equipped with tinted windows and for this reason, perhaps, no one noticed the presence of the child inside the car.
The father, 45, during the interrogation reconstructed what happened stating that he was convinced that he had accompanied the child to the nursery. A daily routine modified perhaps only by the fact that he did not put the bag he carried with him, as he did every day, next to his daughter, but left it in the front seat. This would, therefore, have led him not to open the rear door.