<P> Estes goes missing, and Will volunteers to find him . Julie, Karla, and Tyrell return to the hotel and gather supplies to defend themselves . They head to the hotel kitchen for something to eat, and find Nancy, the bartender, hiding in the freezer . Will finds Estes, but he attacks Will while Ray takes a boat to the island . Ben appears and stabs Tyrell in the throat with his hook, killing him . The girls retreat to the attic, where Karla is attacked by Ben . They both fall through to the hotel bedroom below . Karla runs from the room and jumps onto the greenhouse . Julie and Nancy rescue Karla and run to the storm cellar to take refuge . They find that the storm cellar stores Ben's victims . Will bursts in and convinces the girls to head back to the hotel, stating that he saw Ben on the beach . </P> <P> Back at the hotel, Julie sees Will is bleeding from his stomach, so Nancy takes Karla to find a first aid kit . While retrieving the kit, Nancy and Karla find Estes has been impaled with a harpoon . Ben appears and kills Nancy . Back in the lobby, Julie is tending to Will, unable to find a wound . Will admits this is because it is not his blood . He asks Julie what her favorite radio station is, revealing he was the radio host and killed Estes . Will drags Julie to the graveyard, and tells her he is Ben's son, explaining his actions . Ben appears and attacks Julie . Ray arrives, and a fight ensues between him and Will . When Ben tries to stab Ray, he accidentally kills Will instead . While Ben is distraught from killing his son, Julie takes a gun and shoots him in the chest . Ben falls dead into the grave made for Julie . Ray comforts Julie . Back at the hotel, Karla is found alive . The three are rescued by the coast guard . </P> <P> Sometime later, Ray and Julie have married and are in their new home . Ray is brushing his teeth before bed and Julie is in their bedroom . The bathroom door is quietly shut and locked while Ray is occupied . Julie sits down on her bed, looks in the mirror, and sees Ben under the bed . She screams as Ben grabs her feet with his hook and hand and pulls her under . </P> <Ul> <Li> Jennifer Love Hewitt as Julie James </Li> <Li> Freddie Prinze, Jr. as Ray Bronson </Li> <Li> Brandy as Karla Wilson </Li> <Li> Mekhi Phifer as Tyrell Martin </Li> <Li> Matthew Settle as Will Benson </Li> <Li> Jennifer Esposito as Nancy </Li> <Li> Muse Watson as Ben Willis </Li> <Li> Bill Cobbs as Estes </Li> <Li> Jeffrey Combs as Mr. Brooks </Li> <Li> Benjamin Brown as Darick the Dockhand </Li> <Li> Ellerine Harding as Olga </Li> <Li> John Hawkes as Dave </Li> <Li> Jack Black as Titus Telesco (uncredited) </Li> <Li> Sarah Michelle Gellar as Helen Shivers (uncredited / photo only) </Li> </Ul>

Who's the killer in i still know