A 24-year-old man dressed in Batman's Joker costume attacked passengers on a Tokyo train line on Sunday (Oct 31) evening, injuring 17 people as many party-goers headed into the city center for Halloween gatherings, media reported. <br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
