Case Closed: Episode 12 English Dubbed Episode Description: The investigation continues. Steven Mulholland is found unconscious, his attacker jumps out the window, and Conan discovers narcotics in a piano’s hidden compartment. The paranoid Ken Nicholson is discovered hanging in a nearby room. Music notes left by the killer reveal that he is avenging Casper Austin. With further investigation of Casper’s music sheet, Conan tranquilizes Richard, first explaining that Kevin knocked out Steven, evidenced by the fresh bandage on his arm as he jumped out the window. Next, it is explained that all 3 murders had their times of death falsified to give the killer a perfect alibi. Conan reveals the killer to be Dr. Nadia Adams, who is, in turn, unmasked as Casper's son, Simon. In Casper’s coded sheet music, the 3 victims, former mayor Kickpatrick, plus Casper, formed a drug smuggling operation and used Casper’s concerts as a front to sell drugs, but Casper pulled out. The other members murdered him and his family to keep their drug scheme a secret, not realizing Casper had a son named Simon. As Richard (actually Conan) lays down the facts, Nadia/Simon escapes to the community hall where Casper’s piano is and sets the building ablaze. Conan tries to convince him to escape from the building by showing him Casper's dying message. Simon, grateful for Conan's attempt, throws him out the window then plays Moonlight Sonata as the burning flames close in, just like his father before him.