Boston June 28, 2019 11:25 pm Shark Scare at Duxbury Beach A possible shark sighting cleared a beach in Duxbury for a short time. 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