0 Detective Conan Episode 191: The Desperate Revival ~The Black Knight~

Episode 191: The Desperate Revival ~The Black Knight~

Scenario: The police are unable to find the source of the poison from the drinks. As they are able to rule the death as a suicide, the black knight declares it was a murder and reveals his identity to be Jimmy. Jimmy reveals that the poison was placed in the ice cubes and that Mazuda had a habit of eating ice. He reveals the murderer to be Mazuda's friend, Mai Kougami. Jimmy explains that Mai kept the ice cubes in a little purse which was kept cool through dry ice. Mai says that she bought the same drink as Mazuda and that there was only a fifty percent chance that he would take the drink with the poisoned ice cubes. Jimmy explains she put ice cubes in both drinks and that after emptying her drink, she placed the poisoned ice cubes in her hood evidenced when a 10 yen coin undergoes a chemical reaction with contact to her hood. Mai confesses and explains that Mazuda murdered his patient in order to have his medical thesis published. Shinichi collapses after solving the case and wakes up and realizes he still retains he is still Shinichi and has not regressed back to Conan.

This last detail is revealed by a young man in the audience who seemingly turns out to be Shinichi Kudo, but is quickly revealed by Kazuha to be Heiji in disguise. After a series of questionings Heiji, although unsure of how the victim was poisoned was certain that the murderer was one of four prime suspects. The police are unable to find the source of the poison from the drinks. As they are able to rule the death as a suicide, the still masked "Black Knight" declares it was a murder