C159 The Key to the Falling off the Building Murder Case Was

According to the criminal's behavior, she could infer his mental state and analyze his character, living environment, career, and growing background. She could also infer the murderer based on these, but in Luo Cheng's case, there were not many traces left behind by the murderer. The murderer had perfectly hidden himself.

If it were not for Qi Jinnan's understanding of Ye Yufeng