He Yingqin
On the early morning of December 9, police and soldiers surrounded many schools and closed the city gate at Xizhimen. Petition students were enraged. They successfully broke the police enclosure lines. At around 10:30, they arrived at the Beiping branch of the KMT Military Committee in Zhongnanhai. In front of the Xinhua Gate, they sent the petition letters to He Yingqin, then head of the KMT Military. Angry students waved their arms and shouted slogans such as "Down with Japanese imperialism" and "Immediately stop the civil war", while a 6-point demand was given to the KMT government headquarter.