Zhao Shuan was one of the accomplices of Tie Niu's death. In River God 2, Tie Niu is a very loyal person. After the death of Master Guo, he decided to avenge each other, dragged the brothers of the body salvage team to find out the truth, and even beat his best brother. Later, after investigation, he knew that Master Guo had died in a cold storage. Although the truth didn't appear, he knew it might be his breakthrough, so he came here alone to find evidence.

But here, the iron cow died strangely. Everyone asserted that Tieniu was chased to the cold storage by thieves. He accidentally knocked over liquid nitrogen and died. But the people who investigated this matter felt that something was wrong, because the iron cow was found in the river, and after autopsy, he was not only scalded, but also had many marks in his mouth, which was obviously killed by someone.

In order to know the truth of the matter, the investigators caught Zhao Shuan and tried to force him to tell the truth, punish the offenders and let Tie Niu rest in peace. Zhao Shuan also told the investigators under duress that the iron cow was found in the cold storage, and they were afraid that the previous incident would be exposed. At this time, someone asked him to control Zhao Shuan.

He was afraid of causing trouble and dared not disobey the other party's instructions. The other party poured liquid nitrogen on the iron cow and his mouth. Under such torture, the iron cow died and was thrown into the river, and Zhao Shuan's burns were caused by the iron cow's constant struggle and accidental splashing of liquid nitrogen.