Ep. 864: The Spirit Detective's Murder Part Two Deduction and Mary's Warning
Aired on June 24, 2017

Conan identifies the culprit's trick but is interrupted when he discovers his bow tie is missing. Kogoro begins speaking, revealing the voice originates from a smartphone hidden behind his neck. Mary uses the bow tie to expose Senpei as the culprit. Senpei attempts to flee through the balcony to the next room but is found unconscious by Conan. At the end, Mary warns Sera to remain cautious around Conan, noting he is not the same boy they encountered ten years ago.
Episodes
- Ep. 860 · Kogoro investigates a theft case that turns into a suspicious death involving an unlocked apartment.
- Ep. 861 · Investigation into the Murder of Real Estate President Kunihisa Hiyama
- Ep. 862 · Just Like a 17 Year Old Crime Scene Part Two
- Ep. 863 · Spirit Detective Murder Investigation Begins with a Fatal Call
- Ep. 864 · The Spirit Detective's Murder Part Two Deduction and Mary's Warning
- Ep. 865 · Conan solves the murder of myna bird owner Naoko Kokubo after a scream interrupts their soccer game.
- Ep. 866 · Zero discovers a traitor while Vermouth orders Bourbon to suppress information about a musician.
- Ep. 867 · Akai and Amuro recall the past while Amuro watches Subaru closely
- Ep. 868 · Detective Boys assist Tamaki Yujiro with books, leading to a bookshelf accident involving his son Ichiro.