Wang Dongxing
On 6 October 1976, shortly after the death of Mao on 9 September, Hua removed the Gang of Four from political power by arranging for their arrests in Zhongnanhai, with the assistance of Mao's loyal security chief Wang Dongxing, who became one of Hua's strongest supporters, along with Vice Premier and chief economic planner Li Xiannian and Luo Qingchang, head of the intelligence services. Afterwards Hua took on the titles of Party Chairman and Chairman of the Central Military Commission, being thus far the only leader to have simultaneously held the offices of party leader, premier and CMC chairman.