Okay, I have given this some thought, and having two sons of my own, I know that shouting, screaming etc has the exact opposite effect of what you want to achieve. So, my suggestion is this:

Take him out somewhere for a meal or something so that he both of you are out of the environment in which the trouble is. He will be more open to what you have to say. Speak to him calmly and let him know that what he has done has hurt a lot of people and, if possible, tell him how he has hurt them. He is still a child and a child's natural instinct is to want to know how, why, where, when etc. Explain that that what he has done is wrong again telling him why.

You should also make him understand that even though he has done wrong and hurt people, that does not mean he is loved any less, but also make him realise that his behaviour will not be tolerated again. Give him bounderies. Kids must have boundaries.

I hope this has helped you. Good luck.