the attacker wore a bullet - proof vest under his pajamas and a belt with a knife , an arrow and a fake pistol . two other knife were found surrounding the crime scene . the investigation verified that the man ' s face was washed white with blackened eyes as he committed the crime , which lead foreign media to make compared to the joker , the villain from the batman films . " i have a question , " the prosecutor told the first employee he encountered , after which he initially stabbed her , and started his mayhem . one other days care worker attempted to disarm the woman while others locking the exits . the shooter wounded personnel trying to carry him to safety .
Joker appears in the Batman series.