Ep. 139: Conan reveals Minoru as the killer using projector alibi details in the final screening case.

139

Conan employs Dr. Agasa’s voice to expose Minoru as the murderer after reviewing Toshiyuki’s video evidence. The Detective Boys reenact the crime while Conan explains how Minoru killed Seiji offscreen, then returned to the projection room to manipulate mirrors and reflect light between windows. This setup made Seiji’s corpse appear to sway due to the air conditioner, creating a false alibi. Toshiyuki’s camera captured the incident, showing a shaky film when Minoru reset the mirror. Yuriko inadvertently exposed the trick by using a bathroom mirror, as none existed in the projection room. Minoru confesses that Seiji’s actions caused low patronage, motivating the crime. Before departing, Minoru requests to complete the final screening for the Detective Boys. Consequently, Akio chooses to retain the theatre, inspired by the children’s appreciation for its magic.