You have two sons, Adam is thirteen and Eric is eleven. They enjoy playing video games together. Eric seems to really enjoy the time with his big brother.
Recently Adam purchased a game with his own money and Eric hates the game. Adam has been spending most of his video game time playing the new game alone as he wants to beat it.
Eric, being jealous of the time with the new game, takes an Exacto knife from a craft set and cuts deep scratches in the game disc. No one knows Eric damaged the game. When Adam goes to play his game the system will not load the data so he looks at the disc and sees the cuts. Adam knows immediately what happened even though he has no proof. He takes the disc to your spouse. Your spouse asks Eric and he denies touching the game. The two boys argue but your spouse cuts them off and tells Adam there is no proof so he needs to drop it and he and Eric need to work out their differences.
You later hear a loud commotion from the boys' room. You check and the two are fighting. Adam has Eric held down and is punching his arm. Eric is yelling and trying to hit back. You break up the fight and demand an answer.
Adam tells you that Eric damaged his game and that your spouse instructed him to work it out. Eric is still denying his act of vandalism.
What do you do?