: Conan notices marks on the victim’s face suggesting her mouth was forced open. He eventually shifts the focus to three main suspects: Sonsaku Tsujiei , Kiichi Hachiya , and Mutsumi Suguri .
: Conan reveals that the culprit, Sonsaku Tsujiei, used a clever trick involving sheets and his own feet to fake the victim's time of death. detective conan episode 626 link
In , titled " The Screaming Operation Room (Part 2) ," : Conan notices marks on the victim’s face
" . This episode originally aired in Japan on July 23, 2011, and concludes the mystery at Beika University's haunted house. detective conan episode 626 link