Shishimarin was born in the Russian city of
Ust-Ilimsk in
Irkutsk Oblast. He was a sergeant and squad leader in the
13th Guards Tank Regiment of the
Russian Army's
4th Guards Tank Division. On 28 February 2022, while retreating to join other Russian units, his group of five soldiers hijacked a private vehicle and drove to
Chupakhivka,
Sumy Oblast, about 200 miles east of
Kyiv. On the way, they saw Oleksandr Shelipov, a 62-year-old Ukrainian man, former bodyguard of
Leonid Brezhnev, who was riding a bicycle and talking on the phone. Warrant Officer Makeev, who outranked Shishimarin, ordered the sergeant to shoot the man. He refused, but another soldier named Kufakov repeated the command. On 4 May, the
Security Service of Ukraine posted a video of Shishimarin describing how he had shot the victim. On 18 May Ukrainian Prosecutor General
Iryna Venediktova said her office had been preparing war crimes cases against as many as 41 Russian soldiers. Shishimarin said he was ordered to shoot the civilian because it was feared the man would give away the position of the Russian soldiers. == Trial ==