July 3, 2019 7:00 pm Final Preperations for July 4th Celebration Boston residents turned out to the Charles River Esplanade in preparation for a rehearsal run of the Boston Pops Concert. US & World Videos 2:09 President of MIT calls for shutting down pro-Palestinian encampments 1:00 Three dead in apparent murder-suicide in Lowell 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty