In July 2018, 13 former members of Aum Shinrikyo were executed in Japan, including Asahara Shoko, the guru of the new religion whose crimes killed at least 29 people and injured 6500 more. Aum’s offenses were as heinous as any the country has seen. There was the premeditated slaughter of attorney Sakamoto Tsutsumi, his wife Satoko, and their infant son Tatsuhiko in Yokohama in 1989. There was the sarin gas attack in Matsumoto in 1994, which targeted judges overseeing a lawsuit involving Aum, and which killed eight people and injured more than 500. And there was Japan’s crime of the century: a terrorist attack in which five coordinated releases of sarin gas in the Tokyo subway on March 20, 1995 killed 12 and injured more than 5500—and which (but for a bit of luck) could have killed many thousands.