My two boys 10 & 12 witnessed a group of three boys 9 5 &8 chase down a boy 9 and hit him in the face. These same three boys did same things to a 4yr old day before, and run around trying to hit kids with large sticks and 2*4s. An officer was called out and when my boys told the officer they were playing kickball in yard and out of the blue these three kids ran and tried to hit there friend. The officer said it sounds like kids being kids.