the driver wore a bullet - blackened vest under his clothes and a backpack containing a gun , an area and a fake pistol . two other knives were found along the crime scene . the prosecutor explained that the man ' s face was tinted white with blackened eyes as he witnessed the murders , but led australian media to cause comparisons to the joker , the villain from the batman series . " i have a question , " the killer answered the first employee he encountered , after which he immediately stabbed her , and started his rampage . one female primary service worker attempted to disarm the killer while others locked the doors . the attackers cut employees helping to carry children to safety .
Joker appears in the Batman series.