Complex sentence: Questioning the injured and traumatized girl, Benny learns from her that her entire family has been killed and that she has been unable to escape due to Leatherface and his family, who hunt people for food and sport, watching the roads.
Split into simpler sentences: Questioning the injured and traumatized girl, Benny learns from her that her entire family has been killed. She states that she has failed to escape due to Leatherface and his family--who hunt people for food and sport--watching the roads.