Fan Casting Wrath I/William Caldwell in Batman 4: Wrath Of The Demon

Could have flashbacks to him mentoring Dusan and maybe Dusan valued him quite highly. Maybe after Dusan felt he had learnt everything he needed to know from him, maybe he had him killed so he could become CEO of Caldwell Technologies at just the right moment (I imagine the earthquake machine could be enthused with Lazarus and would take extensive research to perfect, maybe it has certain properties that could make it powerful or something)