Eugene Vedenin was convicted in 2001 for fifteen years of imprisonment sentence in a penal colony on charges of murdering the chief of "Tatneft" Alexander Kalyakin. In 2004, after almost four years, the court found Vedenina innocent - in the investigation of another case entirely real murderer confessed to the police in the murder Kalyakin.

In May 2003, a resident of Naberezhnye Chelny Bulat Mukhametzyanov (name changed in favor of the victim) was beaten by unknown assailants in her apartment building.
During the interrogation, the man suggested that the organizer of the attack is the head of a rival firm. A few days later a preliminary criminal investigation into the attack on Bulat has been suspended in connection with an unidentified person who committed the crime.