1. Aoki Masanori, 34, has been sentenced to death in a Japanese court for killing four people, including two police officers, in May 2023.
2. The crime took place in Nakano City, Nagano Prefecture, where he fatally stabbed two women and shot the responding police officers who subsequently died.
3. During the trial, the court acknowledged that Aoki could be held fully liable for his actions due to the extreme cruelty of taking four lives. The defense argued mental incapacitation at the time of the crime, but this was not considered a mitigating factor.