Japan: Knife & fire attack by man in Batman's Joker costume on Tokyo train

• In a shocking incident, a man reportedly dressed as Joker from the Batman series, attacked passengers on a train in Japan's Tokyo. The 24-year-old reportedly set fire on the train and attacked people with a knife, injuring at least 10. Police reportedly detained him on the spot. Videos on social media showed people running in the train and then getting out through the windows. Watch the full video for more.