Kamyshin school massacre
At around 4 a.m. on 9 March 1997, 18-year-old cadet Sergei Lepnev, who surrendered his gun during the change of guard, opened fire on other cadets after he shot the guard Gennady Ivanov in the head. When Lepnev went to finish Pavel Grigoryev's work, the bullet in his gun ran out and they fled the scene with Arefyov.