Lyudmila Pavlichenko
Lyudmila Mikhailovna Pavlichenko (; 12 July 191610 October 1974) was a Soviet sniper in the Red Army during World War II, credited with 309 kills. She is regarded as one of the top military snipers of all time and the most successful female sniper in history.
Mikhail Popkov
Two years later, Popkov confessed to 59 additional killings, a total victim count which surpasses those of Russian serial killers Andrei Chikatilo and Alexander Pichushkin. On December 10, 2018, after a trial in the regional court of Irkutsk in Siberia, he was convicted of 56 further murders; the three other alleged killings could not be confirmed. He was given a second life sentence.