Nur-Magomed Khatuyev was arrested last year in Belarus.
More than 20 suspects have been convicted so far for involvement in the raid on the Budyonnovsk hospital by a group of militants led by separatist commander Shamil Basayev.
Nearly 150 people died in the incident.
(RIA Novosti, Interfax)
Crisis In Chechnya
RFE/RL's complete coverage of Russia's war-torn Republic of Chechnya.