During a key scene when the shark is first revealed on screen during Jaws, he is building a sandcastle as the shark silently passes by in the water unnoticed by beach goers.
Sean goes sailing with his big brother Mike and is almost killed by another shark.
Sean is unharmed by the shark but it devours his girlfriend.
JAWS: The Revenge (aka JAWS 4)Edit
He is killed while working as a police deputy sent to clear a log away from a buoy. As he does so, a massive great white shark bursts out of the water, rips off his arm, and swallows him.