1. Man dressed as the Joker injures 17 people on Tokyo train  NPR
2. Man dressed as Joker injures 17 on Tokyo train  Yahoo News
3. Man dressed as Joker stabs 17 people on Tokyo train  Fox News
4. Man dressed as the Joker injures 17 on Tokyo train  Reuters
5. Japanese man dressed as Joker injures 17 on Tokyo train  BBC News

Source: Google Finance – Market News