After a thorough investigation , Conan tranquilizes Kogoro .
After a thorough investigation , Conan reveals the culprit to be Kanyo 's wheelchair - bound husband , Tatsuhito Funemoto .
After a thorough investigation , Conan tranquilizes Kogoro and reveals the culprit to be Kanyo 's wheelchair - bound husband , Tatsuhito Funemoto .