In June 2008, tragedy struck Tokyo’s video game/anime/manga district Akihabara. Tomohiro Kato stabbed over 15 individuals, killing 7. He now says he deserves death.
https://kotaku.com/details-surface-about-akihabara-killer-ninja-gaiden-2-5014476
According to sources, Kato sent a letter of apology to one of the victims, writing, ”My crime deserves death.”
The Japanese legal system does have the death penalty.
Defendant in Akihabara rampage sends letter of apology [Kyodo]
