Thích Quảng Đức
Many Buddhists got very angry when the government did not let them show the Buddhist flag in Huế on Buddha's birthday. Earlier, the government let Catholics show the Vatican flag at an event for Ngô Đình Thục, an archbishop. A large group of Buddhists protested this, and marched while showing Buddhist flags on Buddha's birthday. Government soldiers shot at the group, and killed nine people. Diệm said that the Viet Cong were the ones who killed the protestors. This led to more Buddhist protests.