Yoshiyuki Kōno (河野 義行, born February 3, 1950) is a survivor of the Matsumoto incident, a sarin attack that killed eight people and sickened many more in Matsumoto, Japan, on the evening of June 27, 1994 and the following morning.
Source: “Yoshiyuki Kōno (victim)”, English Wikipedia (CC BY-SA 4.0), excerpt