Kenichi Hirose (広瀬 健一, Hirose Kenichi; June 12, 1964 – July 26, 2018) was a Japanese terrorist and member of the doomsday-cult group Aum Shinrikyo. He was later convicted and executed for murder during the Tokyo subway sarin attack.
Source: “Kenichi Hirose”, English Wikipedia (CC BY-SA 4.0), excerpt