However, Yin Feng quickly resumed his aloof author persona, saying, "The identity still cannot be determined. But a killer who has this sort of heart, who just committed two cases, is like someone who just completed an unknown maiden work. I think he may have some characteristics, based on his appearance: For instance, he might look quite depressed. How could he share such work? He must suppress it. But sometimes he might appear haughty or even emotionally agitated, looking down on everyone. He would be very interested in anything related to the crime. When you even find him, he might boast or voluntarily provide you with clues."
The several detectives present remained silent.
Finally, You Mingxu said: "I've noted everything down. I will be mindful of all these during the check. You just said firstly, so what's the second thing?"
