Confusion and Slaughter (混乱と殺戮, Konran to Satsuriku) is the 23rd chapter of the Kiseijuu manga series, written and illustrated by Hitoshi Iwaaki.
Yuko is able to escape, after throwing paint thinner on Hideo. Though this causes Hideo to start slaughtering people around the school, unable to calm himself. Shinichi begins heading towards Hideo, in hopes of saving Murano and stopping him from killing more people. While searching, Shinichi comes across a hallway with numerous bodies mutilated on the floor.