How the 'Twitter Killer' case shocked JapanTo play this video you need to enable JavaScript in your browser.This video can not be playedHow the 'Twitter Killer' case shocked JapanCloseMore on this story. SubsectionAsiaPublished27 JuneShareclose panelShare pageCopy linkAbout sharingRelated topicsJapanFollow Japanclose panelYou are now following JapanUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description