 After news arrived that Zhang had been betrayed and arrested by Chiang, Zhang's old officer corps became very agitated, and some of them murdered a Nationalist general, Wang Yizhe, who was seen as largely responsible for the military's lack of response.While Zhou was still in Xi'an, he himself was surrounded in his office by a number of Zhang's officers, who accused the Communists of instigating the Xi'an Incident and of betraying Zhang by convincing the general to travel to Nanjing.At gunpoint, they threatened to kill Zhou.