 There is an ongoing investigation by the Investigative Committee of Russia.On 11 November, Sokolov was charged with wilful murder (article 105 of the Criminal Code) and was arrested for two months until 8 January 2020 with the detention in the Kresty Prison.On 13 November, his defense lawyer said that Sokolov had given full testimony on the case (he had previously refused to do so, referring to the of the Constitution of the Russian Federation).