Police throng to MIT to honor fallen officer ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Bill Greene/Globe Staff Massachusetts State Police officers saluted during the memorial service for MIT Police Officer Sean Collier. Wendy Maeda/Globe Staff Honor guards were in attendance during the memorial service at Briggs Field in Cambridge. Wendy Maeda/Globe Staff New York Police Officer Kerry Market was one of thousands who attended the memorial service. Wendy Maeda/Globe Staff A student from MIT had a quiet moment outside Briggs Field. Reuters Vice President Joseph Biden delivered emotional remarks at the service. Bill Greene/Globe Staff Thousands of police officers attended the memorial. Bill Greene/Globe Staff Senator Elizabeth Warren (left) looked on as Biden spoke at the service. Bill Greene/Globe Staff Sean Collier's brothers spoke at the memorial service. Wendy Maeda/Globe Staff A hearse bearing left Briggs Field after the service. Bill Greene/Globe Staff A Lexington police officer took a picture before the memorial service. Bill Greene/Globe Staff Police filed into the memorial service for MIT Police Officer Sean Collier at Briggs Field on the MIT campus. Bill Greene/Globe Staff People filed into Briggs Field for the service. Bill Greene/Globe Staff Collier, 27, was murdered last Thursday as a wave of violence that began with the Boston Marathon bombings. Bill Greene/Globe Staff More than 10,000 people attended the event. Bill Greene/Globe Staff Mourners arrived for the service in front of thousands of police officers. Elise Amendola/Associated PRess Police officers arrived by the thousands to the memorial service. BRIAN SNYDER/Reuters Members of the MIT community arrived for the service. BRIAN SNYDER/Reuters Police officers took their seats before the service began. Jonathon Wiggs/Globe Staff Police officers lined up outside Briggs Field at MIT before the memorial service for Collier. Bill Greene/Globe Staff James Taylor warmed up before the memorial service.