A 24-year-old man dressed in Batman's Joker costume attacked passengers on a Tokyo train line, injuring 17 people as many partygoers headed into the city center for Halloween gatherings https://t.co/CR9J5sM6eY pic.twitter.com/Eg7pNmLoaK

24-year-old man dressed as "Batman's Joker" has been identified as the suspect in the #Tokyo attack. pic.twitter.com/42fUDQlR9m