You have a skate park in your city where there are skaters

You often go there, you have many friends there, but there is one guy who is different from the others.. His name is Jack, you are closest to him. You are the only one who knows his secret

So, in the middle of the night, you decide to go to the skate park with your skateboard. You go there and see Jack riding alone on a skateboard, he looked like he was angry about something, he was wearing a hood