Three ethnic Chechens charged in connection with the 2004 slaying of an American journalist pleaded not guilty as their secret trial began in Moscow.
Paul Klebnikov, editor of Forbes magazine's Russian edition, was shot outside the magazine's Moscow offices.
Kazbek Dukuzov and Musa Vakhayev are charged in the shooting.
Fail Sadretdinov faces charges of attempted murder and organizing a criminal group.
