All-National Congress of the Chechen People
They stormed a session of the Chechen-Ingush ASSR Supreme Soviet , which caused the death of the Soviet Communist Party chief for Grozny , Vitali Kutsenko , who was either thrown out of a window or fell trying to escape , and effectively dissolved the government of the Chechen-Ingush ASSR . 
<triplet> Chechen-Ingush ASSR <subj> Grozny <obj> capital