Nobue is found dead with a poisoned arrow in her back while holding a clean arrow in her hand. Ogito's crossbow is found near the scene leading the police to suspect him. Later, Ogito falls down a cliff due to being shocked by an electric fence. Conan, realizing how the events transpired, tranquilizes Kogoro and reveals how the three died. Katayose poisoned himself and hoped to frame his children in order to protect Nakakita from their greed.