Alexey Kruglov

Alexey Sergeevich Kruglov (Russian: Алексей Сергеевич Круглов; born 8 March 1986), known as The Istra Maniac (Russian: Истринский маньяк), is a Russian serial killer, rapist and pedophile. He raped and killed 4 children in the Istrinsky District of the Moscow Oblast.