Did Prendergast's wife kill their daughter?
It seems to me that Prendergast hints this to D-fens in the scene near the end where he is "negotiating" do diasarm him. He says that it was hard for her wife to lose her beauty when she gave birth to their daughter, and that the daughter died inexplicably during sleep. It seems that he hints that his wife killed their daughter, giving her the blame for her lost beauty.
Are we supposed to believe that this happened?