You run toward the door as your friends try to hold you back, but you escape their grip and pick up the fire extinguisher and you smash the suspect's hand, causing them tho scream and get angry so they grab your arm and yank you to the door frame, causing you to hit your head while your arm is being tugged. You manage to break free and throw the fire extinguisher at the suspect's face. They tumble backwards and you throw a nearby biology book at them too. The suspect doesn't move. Everything is still. After 3 minutes you start thinking if you should either go outside to see if the suspect is unconscious or dead, or stay and keep the rest of the class safe.