Behind the Scenes of Zhou Yongkang's Downfall

Zhou Yongkang, the previous Minister of Public Security of China, could even kill his wife in order to gain his position in CCP. So whatever he dare not to do? Jiang zemin (previous president of China) is also valued his cruel bloodthirsty nature. Controlling more than the annual defense budget and regarding the people as the enemy, the "tsar for maintaining stability" would lunch a coup at any time. How did Xi Jinping, the new president of China, defeat Zhou yongkang governing considerable military power during peace time, when Xi's position had not consolidated yet? Oppressive and ruthless officials always face a miserable end since ancient times. This time the master of the ruthless can hardly escape from the ruin too.