Information obtained by the KGB from its agents in Kabul provided the last arguments to eliminate Amin. Supposedly, two of Amin's guards killed the former General Secretary Nur Muhammad Taraki with a pillow, and Amin, himself, was suspected to be a CIA agent. The latter, however, is still disputed with Amin repeatedly demonstrating friendliness toward the various delegates of the Soviet Union who would arrive in Afghanistan. Soviet General Vasily Zaplatin, a political advisor of Premier Brezhnev at the time, claimed that four of General Secretary Taraki's ministers were responsible for the destabilization. However, Zaplatin failed to emphasize this in discussions and was not heard.