






Japanese mass killers sentenced to death but not yet executed
Hiroshi Zouta (1998 Ikebukuro attack, 2 dead, 6 injured)
He indiscriminately attacked pedestrians in front of a department store and on the street leading to Ikebukuro Station with a kitchen knife and a hammer.
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Masanori Aoki (who perpetrated the 2023 Nagano shooting, 4 dead)
https://en.wikipedia.org/wiki/2023\_Nagano\_attack
After stabbing two women to death, he shot and killed two policemen with a shotgun.
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Masumi Hayashi (1998 Wakayama curry poisoning case, 4 dead, 63 injured)
https://en.wikipedia.org/wiki/Wakayama\_curry-poisoning\_incident
On July 25, 1998, a pot of communal curry at a summer festival in the Sonobe area of Wakayama Prefecture was poisoned; at least 130 grams of arsenic were added to it. Two children and two adults died after consuming the curry, and 63 others showed symptoms of acute arsenic poisoning.
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Kazuhiro Ogawa (2008 Osaka arson attack, 16 dead, 9 injured)
https://en.wikipedia.org/wiki/Osaka\_movie\_theatre\_fire
He set fire to an adult arcade in Osaka with a cigarette at around 3 a.m. on October 1, 2008.
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Shinji Aoba (Kyoto Animation arson attack, 36 dead, 34 injured)
https://en.wikipedia.org/wiki/Kyoto\_Animation\_arson\_attack#Perpetrator
Shinji Aoba, believing that Kyoto Animation had plagiarized his work, poured gasoline on Kyoto Animation employees on the first floor of Studio 1 on July 18, 2019, and set ablaze 40 liters (8.8 imperial gallons; 11 US gallons) of gasoline on his flatbed cart.
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Satoshi Uematsu (2016 Sagamihara stabbings, 19 dead, 26 injured)
https://en.wikipedia.org/wiki/Sagamihara\_stabbings#Perpetrator
In the early hours of July 26, 2016, he broke into a nursing home with Multiple knives, tied up the security guards, and then stabbed elderly and disabled patients in each ward. He later surrendered to the police.
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Hirofumi Komatsu (Ibaraki Prefecture family annihilation case, 6 dead)
In the early hours of October 6, 2017, he stabbed his sleeping wife and five children to death with a sashimi knife at home, and then set the house on fire.