Alexander Yuryevich Pichushkin, also known as the Chessboard Killer and the Bitsa Park Maniac, is a Russian serial killer who is believed to have killed at least forty-nine people, and possibly as many as sixty, between 1992 and 2006. From Wikipedia
Alexander Pichushkin, already serving a life sentence for 48 murders, could see his victim count rise to 59, making him Russia's second most prolific serial killer if new confessions are verified.