Before revision: Underground compound discovery and raid In August , 2012 four , during an investigation of attacks on Muslim clergy in Tatarstan, Russian police found an eight-level complex of underground chambers beneath Sattarov's home in Kazan, occupied by 27 children and 38 adults who lived in catacomb-like cells.
After revision: Underground compound discovery and raid In August 2012 , during an investigation of attacks on Muslim clergy in Tatarstan, Russian police found an eight-level complex of underground chambers beneath Sattarov's home in Kazan, occupied by 27 children and 38 adults who lived in catacomb-like cells.