Case Closed - Season 1 Episode 662 Kogoro-san is a Good Man (2)

Conan completes his investigation and realizes who the murderer is. The suspects, realizing Ryohei is a fake, challenges him to declare who the culprit is. Conan relays his deductions to Ryohei explaining a system of fans and TV remotes created a fake time of death; This was done setting one of the fans and remote to channel surf while the other fan and remote is set on a timer to turn off the TV. They reveal the remotes were most likely held in place by a rubber band which Hyodo Junjei has on him. As evidence, the blood smear from the victim was found on the rubber bands. Junjei confesses and reveals the victim blackmailed him after finding out he was a drug dealer. Conan and Ran confront Ryohei about his identity and learns Kiritani was his elementary school teacher who influenced him. Days later, Kiritani sends a post card to Kogoro thanking him for sending his disciple Ryohei, to look after her.