A neighbors kid who is a boy age 9 or so in the same grade as my easy child girl age 9, attacked her without provocation about a week ago. she was riding on her scooter and he came behind her on his bike and punched her very hard in the head so that she fell off. then when she got back up he came back and pounded her in the back! At the time I was as mad as any mother would be in that situation and I immediately sought out the boy and grabbed him by the wrist and brought him to the parents. I said to them: "your son did so and so to my daughter. This first time is a freebie, next time your I will report your son to the apartment manager." Well, yesterday, this boy is still menacing her with words and threats. He is extremely agressive for ABSOLUTELY NO PROVOCATION. I have told my kids to stay away from him. He obviously has very extreme agression issues which became apparent when I walked him home to mom and dad, the first thing his mom did was smack him upside his head! But he told my easy child yesterday, "your mom is a piece of sh**" uhhhh huh. nice. considering what i know now about CD's how should I approach this?