Activist Missing after Escaping from 'Black Jail' South China Morning Post, July 19, 2012 http://www.scmp.com/portal/site/SCMP/menuitem.2af62ecb329d3d7733492d9253a0a0a0/?vgnextoid=6666b34212a98310VgnVCM100000360a0a0aRCRD