Complex sentence: Realizing he was set up, Gittes assumes that Mulwray's husband is the real target, but, before he can question him, Lieutenant Lou Escobar fishes Mulwray, drowned, from a freshwater reservoir.
Split into simpler sentences: Realizing he was set up, Gittes assumes that Mulwray's husband is the real target. Before he can question him, Lieutenant Lou Escobar fishes Mulwray, drowned, from a freshwater reservoir.