How spy cameras brought down student rapist Zhenhao ZouTo play this video you need to enable JavaScript in your browser.This video can not be playedHow spy cameras brought down student rapist Zhenhao ZouCloseWatch the full episode on BBC iPlayer.SectionNewsPublished1 SeptemberShareclose panelShare pageCopy linkAbout sharingRelated topicsSexual violenceFollow Sexual violenceclose panelYou are now following Sexual violenceUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description