Massachusetts August 10, 2017 5:15 pm Wood Construction Causes Concern With a 10-alarm fire in Waltham, Massachusetts, being determined to have been intentionally set, the NBC Boston Investigators are looking into construction materials that may cause flames to spread even faster. US & World Videos 1:40 Heavy police presence near on-campus protests 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'
