The MIT Police and Cambridge Police Joint Honor Guard presented the flags at the ceremony of remembrance for Officer Sean A. Collier held last Friday in MIT’s North Court. Ho Yin Au—The Tech May. 9, 2016 Facebook Twitter Reddit Print The MIT Police and Cambridge Police Joint Honor Guard presented the flags at the ceremony of remembrance for Officer Sean A. Collier held last Friday in MIT’s North Court. Ho Yin Au—The Tech