One Way Out

You entered the locker room, noticing that the door wasn't in the frame. You wondered where the it went. You walked into the teacher's office and entered the lockers inside. You heard banging sounds outside. Yelling. You couldn't resist the temptation so you decided to peek out through the door frame. You saw Michael running across the gym.
Looking around, you saw a dead body on the ground: Jacob. Standing by him was John. He started running across the room at a speed that didn't seem human. He reached Michael when he was 10 feet from the door. So close, and yet so far. John punched Michael in the face and you reentered the locker room before John could see you.

You have 1 choice: