Poirot gathers everyone in the saloon and reveals that Simon is responsible for Linnet's murder, with Jackie as his accomplice. She pretended to shoot Simon, drawing attention to herself. After running to Linnet's cabin and shooting her in the head, Simon shot himself in the leg, using Mrs. van Schuyler's stole as a silencer, then replaced the empty cartridges with a new one should the gun be found. He then wrapped the gun in the stole, along with a marble ashtray and the supposed blood-stained handkerchief, and threw the items out the open window, into the Nile. Jackie later killed Louise, who was blackmailing Simon because she witnessed him enter Linnet's cabin, then killed Mrs. Otterbourne, who saw Jackie exiting Louise's cabin. The plan was that Simon would marry and then kill Linnet, inherit her money, and at a later date, marry his old love.