August 19, 2017 6:30 pm High Security Presence Kept Violence at Bay High numbers of police personnel and security teams kept most of violence to a minimum. US & World Videos 2:31 Fallen Billerica Police Sgt. Ian Taylor honored at vigil 2:33 Massive fire destroys Randolph apartment building 2:50 Rally held in Boston in support of Jewish college students 2:35 Fallen Billerica police sergeant honored during vigil 2:09 President of MIT calls for shutting down pro-Palestinian encampments