Hackers placed the MIT Police badge on both the shoulder and chest of The Alchemist on April 22, 2013 in memory of Sean Collier. Ho Yin Au—The Tech May. 9, 2016 Facebook Twitter Reddit Print Hackers placed the MIT Police badge on both the shoulder and chest of The Alchemist on April 22, 2013 in memory of Sean Collier. Ho Yin Au—The Tech