1. The murderer behind the picture book Hunting Crime is Chen Zhou. Chen Zhou was guilty of human trafficking, instigated Zhou Jun to kill people, and tampered with the video to frame Ducheng. The key is that he used the free security system to steal other people's privacy for his own selfish desires, which is very selfish and bold.

Chen Zhou thinks he is a genius, but in fact he is very conceited. In particular, he used other people's privacy to extort money, which is shameful.