Sargsyan , along with Demirchyan and several others , was assassinated in the Armenian parliament shooting of 27 October 1999 . The perpetrators were sentenced to life in prison . However , the distrust toward the trial process gave birth to a number of conspiracy theories . Some experts and politicians argue that their assassination was masterminded by Kocharyan and National Security Minister Serzh Sargsyan . Others have suspected the possible involvement of foreign powers in the shooting
Armenian parliament shooting
Armenian parliament shooting
Vazgen Sargsyan