Niko Bellic's contact at United Liberty Paper orders him to locate Dimayev using the LCPD Database and kill him during the mission "Portrait of a Killer". He is located near a small garage in Dukes surrounded by bodyguards, creating a shield that the player has to fight through before Dimayev can be reached. Niko kills Dimayev in the gunfight. Strangely, if Dimayev is killed before any of his guards, the last surviving guard drops his gun and the player can choose to kill him or let him go.
LCPD Database record
Place of Birth:
Linked to Russian Organized Crime
2006 - Grand Theft Auto
Immigrated to the US, possibly illegally, from Russia.
Believed to be head of a car stealing ring based in Dukes.
Wanted for questioning by the Russian government in connected with the bank rolling of terrorist activity around the Caspian Sea.