MOSCOW, January 29. /TASS/. The investigation against defendants in the murder case of Russian opposition politician Boris Nemtsov has been completed, an official spokesman of Russia’s Investigative Committee, Vladimir Markin, said on Friday.

"As part of the investigation, final charges have been brought against Zaur Dadayev, Anzor and Shadid Gubashev, Tamirlan Eskerkhanov and Kamzat Bakhayev," Markin said.

"They are charged with committing the contract killing as part of an organized group and illegally purchasing, carrying, transporting and storing firearms," the spokesman said.

The defendants and their lawyers will familiarize with the criminal case materials soon.