The selfless Zhao Zhichuang

At first, Zhao Zhichuang thought that all the people were killed by Harvey Chase.
But soon, the subordinates came to report.
"Director Zhao, there are bodies of the Twelve Constellations killers in the yard. Also, we found a man dressed as a priest on the street. We just sent his face to the headquarters for comparison and found that it was the priest and the Twelve Constellations killers. Now it seems that they killed everyone in the villa! I just don't understand how these killers died."...