Two events in 2001 caused an outcry of public opinion against the government. In July, a popular anchor for the Rustavi-2 network, Giorgi Sanaia, was murdered. The consensus among Georgian journalists and the public was that he was killed because of his anti-government work on the Chechen conflict and corruption investigations. In October, agents from the National Security Ministry raided the headquarters of Rustavi-2. The tax-raid was broadcast on television from outside the building. Upwards of seven thousand student-led protestors, many mobilized by the Liberty Institute NGO, amassed outside the headquarters and demanded the resignation of the Shevardnadze government. Shevardnadze responded by sacking his cabinet and his minister of security. Importantly, this event triggered the defection of Mikheil Saakashvili and the abdication of Zurab Zhvania from their positions in the Citizens' Union of Georgia, eventually leading to the formation of the National Movement and United Democrats opposition parties.