Just to be the devil's advocate on this, if the facts are as he has alleged, he has a point. You have to follow the law and the constitution. If you capture a criminal, at the point that he is defenseless, you are not allowed to be judge, jury, and executioner. He is alleging that he was captured and defenseless and at that point he was administered a severe beating, and had boiling hot soup poured on him as he was held down.
If he tried to rob the store, he is a criminal. On the other hand, people who beat defenseless prisoners are also criminals.
Recently, a man in Detroit hit a child with his truck. When he got out, a mob beat him half to death. They became judge, jury, and executioner, and beat a man half to death.
We don't allow mob justice or lynching. We all have constitutional rights.