The Spirit Detective's Murder (Part Two) Conan realized the trick that the culprit used. He was about to explain his deduction when he noticed that his bow tie was missing. Kogoro started talking which startled Conan and he noticed that the voice was coming from the smartphone placed at the back of Kogoro’s neck. It was revealed that Mary is using the bow tie and pointed out that the culprit is Senpei. He ran to the next room through the balcony in an attempt to escape but was later found by Conan to be lying unconscious. Before the episode end, Mary warned Sera to keep her guard up around Conan as he’s nothing like the boy they met 10 years ago.