[4] In 2002, Bykov received a suspended prison sentence of 6+1⁄2 years for plotting the murder of a former associate.
The case was under review by the European Court of Human Rights in Strasbourg, following an application lodged by Bykov.
In 2009, it ruled that Russian authorities violated the rights of Bykov and awarded him about $33,000 in compensation.
[5] In May 2020, Bykov was arrested in Krasnoyarsk, on suspicion of organizing the 1994 murders of criminal gang members Kirill Voytenko and Alexander Naumov.
In December 2023, he received another 12 years for inciting the murder of crime boss Vladimir Filippov.