the attacker wore a bullet - proof hood under his clothes and a backpack containing a knife , an axe and a fake shotgun . two other men were found near the crime scene . the prosecutor confirmed that the victim ' s face was painted white with blackened eyes as he committed the crime , which led international media to make comparisons to the joker , the villain from the superman series . " i have a dilemma , " the killer told the first one he noticed , after who he immediately stab her , and started his search . three female primary nurse person attempted to disarm the attacker while several locked the doors . the killer stabbed employees trying to carry him to school .
Joker appears in the Batman series.