20 years have passed since the tragic events of the Black October 1993, but today they remain one of the most poorly studied pages of modern Russian history. Most of the documents related to the events of 1993 are still classified. A sensational study by Valery Shevchenko, candidate of historical sciences, breaks the veil of secrecy over the bloody denouement of the confrontation between the president and parliament and reveals one of the most terrible mysteries of those days.