harry meets peter parker at university and at first can't stand him. he later gets to know him better and becomes his best friend. harry's father norman then becomes the supervillain the green goblin and harry starts to use drugs. green goblin then kills spider-man's girlfriend gwen stacy and accidentally kills himself during a battle with spider-man. harry blames spider-man for his father's death and wants to get revenge by becoming a supervillain the second green goblin.