Leonid Azkaldian ( November 23 , 1942 Tbilisi - June 21 , 1992 Martakert ) was an Armenian physicist and one of the founders and the commander of `` Liberation Army '' military organization . Leonid Rubeni Azkaldian ( 23 November 1942 Tbilisi -- 21 June 1992 Martakert ) was an Armenian physicist and one of the founders and commander of the `` Liberation Army '' military organization .