Talking to
Izvestiya in 2007 a representative of the
Federal Security Service suggested that approximately 10,000 people had been killed and buried in
mass graves at Kommunarka. Painstaking work by
Memorial researchers and others in the 1990s established the identity of 4,527 known to be buried there. Their names were published in Memorial's first Book of Remembrance. Before Kommunarka opened as a memorial complex in 2018 an archaeological survey indicated that 6,600 bodies probably lay there, the total number of names since reached through further documentary research. As with so many other "firing ranges" throughout the former Soviet Union, the
FSB (successor to the
KGB and the
NKVD) retained control of the territory for many decades thereafter. Only in 1999 was the land transferred, as with the
Butovo firing range south of Moscow, to the
Russian Orthodox Church. Only on 14 November 1999 did a plaque commemorating the Victims of Political Repression at the "special installation" finally appear, later than at any other mass burial site in Moscow, comments
Arseny Roginsky. A church dedicated to Russia's
New Martyrs and Confessors, i.e. those who had died for their Christian faith during the Soviet period, was built at Kommunarka and their feast day was thereafter celebrated each year on or around 25 January. ==Opening and controversy==