Gun Free Zone? (VIDEO) July 21, 2012 Print Article Citation Eric Mao. Gun Free Zone? (VIDEO) [Internet]. Version 4. Shepherd Mao. 2012 Jul 21. Available from: http://shepherdmao.com/article/gun-free-zone/. PDF, XML Email Tweet Authors Eric Mao M.S., M.B.A. Website: http://www.shepherdm… Libertarian, history lover who thinks shepherd dogs are super cool. Has a computer science and business background. Working on new messages about life, liberty, and the pursuit of happiness.