Case Closed - Season 1 - Eps 673: Detectives' Nocturne (Deduction)
Conan stops feigning his sleep and tells his kidnapper she is actually Serina Urakawa and that Kei Katshitsuka was the dead man at the agency; his deduction stemmed from a phone call to Shouno's relatives to find out the identity of his girlfriend. Conan explains that Katshitsuka and the man in the apartment were two of the three robbers. Urakawa learned from Shouno that Katshitsuka was one of the robbers. When visiting his apartment, she meets the second robber whom she killed in self-defense. After learning that Katshitsuka plans on meeting with Kogoro to find out which locker the money was hidden in, she attempts to interrogate him and fashions his murder as a suicide by drugging him, placing the gun in his hands, and pulling the trigger with a string. As for the third robber, Urakawa plans on visiting the three female contacts found on Katshitsuka's phone to determine which one is the culprit.
About Case Closed

Title: Case Closed
First Air Date: 1996-01-08
Last Air Date: 2025-03-08
Status: Returning Series
Rating: 8/10 (from 683 votes)
Language: JA
Seasons: 2
Total Episodes: 1157
Network: YTV
Genres: Animation, Crime, Mystery, Comedy
Production Companies: TMS Entertainment, Kyokuichi-Tokyo Movie
Synopsis
The son of a world famous mystery writer, Jimmy Kudo, has achieved his own notoriety by assisting the local police as a student detective. He has always been able to solve the most difficult of criminal cases using his wits and power of reason.
Cast

Minami Takayama
Conan Edogawa (voice)

Kappei Yamaguchi
Shinichi Kudo (voice)

Wakana Yamazaki
Ran Mouri (voice)

Akira Kamiya
Kogoro Mouri (voice)

Rikiya Koyama
Kogoro Mouri (voice)

Megumi Hayashibara
Ai Haibara (voice)

Kenichi Ogata
Hiroshi Agasa (voice)

Yukiko Iwai
Ayumi Yoshida (voice)

Wataru Takagi
Genta Kojima (voice)

Ikue Otani
Mitsuhiko Tsuburaya (voice)