The interrogation of Zhang Zhanjun made no progress, basically yielding no information.
This is quite rare; it's not simply a case of resistance but a situation that only arises from specialized training. Under normal circumstances, people in the interrogation room have their guard up. No suspect willingly accepts interrogation, but normal people, even in silence, inadvertently reveal a lot of information. Even silence can provide the police with feedback through information delivery and facial observation, leading to many answers.
However, Zhang Zhanjun's silence could truly be expressionless, which is remarkable.
Nevertheless, for someone like Liu Jinghui, who belongs to the reasoning class, high professionalism is also extremely useful information. This not only increases Zhang Zhanjun's suspicion but also requires intensifying the effort to gather evidence.
