About the book: 1997 / The most terrible secret of Russian history of the 20th century has not yet been solved. Although dozens of the most authoritative commissions were created for this purpose, the best investigators of their time were involved in its investigation over the years. On December 1, 1934, a certain Leonid Nikolaev killed the Secretary of the Central Committee of the All-Union Communist Party (Bolsheviks) S. M. Kirov. What forces were behind the shot that raised a wave of unheard of terror for many years? Who is Nikolaev: a lone maniac? Desperate unemployed? Provocateur? Fanatic? Finally, what role did Stalin play in that event? This is described in the book, there was a film about this shown by the NTV Television Company.