Boston July 25, 2020 6:05 pm Fun Ways to Beat the Heat During Hot Weekend Cooling centers will be open in Boston during the heat emergency, Sunday through Tuesday. US & World Videos 4:17 Police presence grows at pro-Palestinian encampment at Northeastern 5:39 Billerica police sergeant hit and killed by excavator during construction detail 2:31 Celtics preparing for pivotal Game 3 against Heat in Miami 2:37 Quincy detective resigns amid allegations of ‘unwelcome, sexually explicit conduct' 4:07 Officer hit and killed while working construction detail in Billerica, authorities say