Spoilers: This article explains the killer’s staged confession, the murder location and the final misunderstanding.
Kengo Kitao is the murderer, and his apparent attempt to protect someone else is part of his cover. The Interrogation Room 2 is international episode 1185 (Japanese episode 1127), an anime-original story. He wants to be arrested, exposed as an apparently innocent man and released, giving himself both a public platform and what he imagines will be protection from further suspicion.
Conan breaks the plan by questioning where the victim actually died. The car’s discovery site is too far from Kitao’s alibi, but the abandoned factory where the killing occurred is close enough for a brief absence.
A confession is holding up the case instead of resolving it
Kogoro visits Megure because an investigation he helped with appears to have stalled. The suspect, former elementary-school teacher Kitao, has already admitted killing Masato Honda. Yet the more the police question him, the less reliable the confession sounds.
Honda was found dead in a car at an Asahidai development site after an anonymous call. Charcoal-burning equipment was present, and the death was attributed to carbon monoxide poisoning. Evidence of sleeping medication also makes a straightforward suicide explanation inadequate.
Two days before the death, Kogoro saw Honda arguing with an older man and saw that man buying the charcoal equipment. A photograph supplied by Kitao’s former pupil, Kanbara, helps identify him. Kanbara also claims to have seen Kitao running from the scene.
The clues seem unusually cooperative, but the suspect is not. Kitao accepts responsibility while repeatedly failing to remember the essential details. A quick confession without a coherent account leaves the officers needing more than his willingness to be charged.
The woman he says he is protecting already has an alibi
Honda’s aunt, Haruka, becomes another possible suspect because her nephew regularly demanded money from her. She and Kitao attend the same haiku class and have grown friendly. The police consider whether his confession is meant to protect her.
Kitao admits that explanation, and Kanbara’s eyewitness account proves to be a lie that Kitao requested. The case starts to look like a misguided false confession. But Haruka has a firm alibi, and Kitao knew about it in advance.
That knowledge matters. Protecting her cannot adequately explain the elaborate performance when he already knows she can account for her movements. Her alibi was useful to his plan because it would help make his own supposed sacrifice collapse in front of the investigators.
His reaction to a delayed release gives the performance away
When told that disrupting the investigation means he cannot immediately walk free, Kitao becomes agitated. The man who had wanted to be charged now fears staying in custody. The change reveals that his cooperation depends on reaching a particular outcome quickly.
Kogoro and Conan check the account with Kanbara. During their time together on the day of the death, Kitao left for about ten minutes, supposedly to buy cigarettes. Asahidai is about an hour away, so the absence initially seems too short to matter.
Conan questions that geographical assumption. The alibi rules out the distant discovery site during those ten minutes, but it does not prove the victim was alive somewhere else. He finds an abandoned factory within the area Kitao could have reached.
The car connects two locations, not one
Kitao had drugged Honda and taken him in the car to the abandoned factory before visiting Kanbara. The brief absence allowed him to return there and begin the charcoal-burning part of the murder. The victim died in the concealed car at that nearer location.
Kitao later moved the vehicle to the Asahidai development site and recreated the charcoal scene there. His anonymous report ensured that the police discovered the car where he wanted them to. The location was evidence of where it was found, not necessarily where the poisoning had occurred.
Conan presents this reconstruction through Sleeping Kogoro from the room adjoining the interrogation room, using the microphone to address Kitao. The explanation joins the ten-minute gap to a feasible nearby location and breaks the apparent impossibility based on Asahidai.
His other preparations now become clear. He made his dispute and purchases conspicuous, chose a day when Haruka would have an alibi and recruited Kanbara’s false testimony. Even the police’s expected discovery that he was “protecting” her had a place in his script.
The planned public confession was about love, not guilt
Kitao had feelings for Haruka. Honda was demanding money from him too, threatening to spread damaging stories about him to her if he refused. When she expressed frustration that things would be different without Honda in the way, Kitao treated her words as a wish to have her nephew killed.
He imagined removing Honda would help her. He also expected his release after an apparent wrongful arrest to make him a news subject, allowing him to declare his feelings on a television talk show. His hope that the experience would permanently shield him from suspicion is his own calculation, not a sound conclusion established by the case.
Haruka finally makes clear that Kitao has misunderstood her completely. Her remark concerned a different romantic feeling and embarrassment, not a request for murder. He has built a killing and a public fantasy around an intention she never expressed.
Kitao admits the crime once the scheme is exposed. The unpleasant core is how easily he substitutes his desired story for another person’s wishes. The interrogation works because Conan listens not just to what Kitao admits, but to what outcome his changing admissions are trying to produce.
A confined setting gives small contradictions room to matter
The room does not need a succession of spectacular physical discoveries to maintain pressure. A vague confession, a previously known alibi and sudden anxiety about release each expose a different weakness in Kitao’s account.
The final public-screen marriage news gives Kogoro a more exuberant reaction and Conan another reason to look exasperated. The lighter close does not remove the case’s bitter point: declaring that something is for another person’s sake cannot replace actually understanding that person.
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