In the case of the arrest of a teacher at a nearby junior high school for the murder of a male resident of a house in Tokyo's Edogawa Ward, interviews with investigators revealed that a memo of "hypothetical questions and answers" that was thought to have been prepared in advance by the teacher in anticipation of an investigation had been found from a related party. The Metropolitan Police Department is investigating the possibility that he may have responded to voluntary interviews before his arrest based on this.
In February, Masafumi Yamagishi, a 2-year-old resident of Edogawa Ward, was found bleeding and collapsed, and the Tokyo Metropolitan Police Department arrested Kosuke Omoto, a 63-year-old junior high school teacher in Edogawa Ward, on suspicion of killing Yamagishi by slashing his face and neck with a knife.
It means that we remain silent about the investigation.
Prior to his arrest, Mr. Omoto had been interviewed voluntarily by the Tokyo Metropolitan Police Department, but interviews with investigators revealed that he had once been asked by Mr. Yamagishi to carry his belongings from his residence, saying that he had once been asked to carry his belongings from his residence.
He also explained, "I had a nosebleed when I entered the house, and Mr. Yamagishi told me to throw away the mask with blood on it, so I gave him the mask."
In the subsequent investigation, interviews with investigators revealed that a memo of "assumed questions and answers" that Mr. Omoto seemed to have prepared in advance in anticipation of the investigation being extended, including these contents, had been found from related parties.
In Yamagishi's residence, footprints of the same type as the sneakers possessed by the suspect and a mask with blood stains that appeared to belong to the suspect were found, and the Tokyo Metropolitan Police Department is investigating the possibility that Omoto may have responded to the interview by making a "hypothetical question-and-answer" memo in order to match the items left at the scene.
Crafting junior high school work records
According to the Tokyo Metropolitan Police Department, Mr. Yamagishi is believed to have been killed around 6:7 p.m., but according to the junior high school work record, Mr. Omoto left work after 1 p.m. on the day of the incident, and he himself told a voluntary interview before his arrest that he was at school at the time of the incident.
However, Omoto had applied for leave that afternoon, and when the Metropolitan Police Department analyzed the footage from security cameras near the school, it was newly discovered from interviews with investigators that he appeared to have left the junior high school around 7 p.m.
It was also found that the suspect Omoto later asked his boss to enter the clock-out time, which was supposed to be after 5 p.m.
Previous investigations have confirmed that security cameras showed a person believed to be Omoto, believed to be Omoto, walking in the direction of Mr. Yamagishi's residence around 6:3 p.m.
The Metropolitan Police Department is investigating the suspicion that he attempted to create an alibi while working at the school around <>:<> p.m. when the incident occurred.
In addition, the Tokyo Metropolitan Police Department is investigating the details of how Omoto commuted from his home to junior high school, using a train until March, used a train and walked past Yamagishi's residence, but changed to a bicycle last month and commuted on a route that does not pass through the site.