	Philipp Petrovich Tyurin (born 1910 in Sumerki, Ryazan Governorate, Russian Empire - 1947 in Leningrad, RSFSR), also known as The Leningrad Maniac and The Hellraiser, was a Soviet serial killer who operated between 1945 and 1946 in Leningrad. According to investigators, during this period Tyurin murdered 14 people, but he himself confessed to 29 total murders.