Do not set up a situation of threat where the child will feel the need to go into his defenses. Give him a cool down period before talking to him. Give him a choice of the place where he wants to cool down. Giving the child choices helps him to feel respect and helps him to be part of figuring out solutions. Imperatives given in a loud voice will cause him to shut down and be unavailable to your correction.
Angry children feel shame about being weak inside and turn around and victimize others.
Your modeling firmness and fairness to the child will increase the likelihood that he will choose better ways of acting in the future. Scolding and shaming the child will only cause him to dislike himself even more resulting in a cycle of aggressive behavior. Helping the child save face and reduce the shame that he feels at being caught is part of getting him to understand and change his behavior. He will feel bad enough just being found out. The child who is labeled often internalizes what is being said about him in a negative way.