Incidentally, just a few days before the assassination attempt, the SBU announced charges in absentia against Major General Nikolay Varpakhovich . A similar situation occurred with the killing of Lieutenant General Igor Kirillov , head of Russia’s #Nuclear, Biological and Chemical Protection Troops, and the assassination attempt against Alexander Chaiko , Commander-in-Chief of the #Russian Aerospace Forces. Before organising the attacks, the SBU had also formally declared them suspects .