final destination after a chaotic and horrific scene broke out on board involving a deadly weapon. this is no halloween prank. as commuters in japan headed for tokyo city center on sunday, some ended up running for their lives. this video shows streams of panicked people trying to escape a train car where witnesses say a man who might have been dressed up as the comic book character the joker or possibly a different character was attacking passengers. observers say the suspect was waiving a long knife and according to japan's public broadcaster nhk set fire to the train after spreading lighter fluid across the seats. 17 people were injured and one man is in serious condition after being stabbed in the chest. he was on the train and captured this video.