Should the Mother of 10 yr. Old Boy Found Dead Be Prosecuted?

A 10 year-old boy was found beaten to death by his step-father in Buffalo, New York. 10 year-old Abdifatah Mohamud was found dead in the basement after his step-father bound and beat him until he was deceased. Eventhough his step-father was arrested, a lot of people knew the abuse that was taking place including the boys mother. Do you feel that more people in this case should be held legally responsible for neglecting to report the abuse?