August 18, 1941 - Boris Serebryakov

Boris Efimovich Serebryakov (Russian: Бори́с Ефи́мович Серебряко́в; 18 August 1941 – 1971), known as The Kuybyshev Monster (Russian: Куйбышевский монстр), was a Soviet serial killer, necrophile and mass murderer who operated in Kuybyshev (present-day Samara). He killed nine people with exceptional cruelty and caused grievous bodily harm to three others.

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