Is it possible to avoid the tragedy of the Xu brothers and sisters in the Black Storm?

The tragedy of the Xu brothers and sisters in "Sweeping the Black Storm" can actually be avoided. Hill could have pretended not to know if he hadn't been greedy and blackmailed him.

Because Xiaoshan was greedy and blackmailed him, he met the director of the "dirty" police station, which led to his tragedy.

Secondly, Xiaoshan's sister knows Lin Hao. If she told you after the accident, or asked Lin Hao to accompany her to see a group of Sun Xing, such a tragedy might not happen later.