Boston April 27, 2018 11:30 pm Boston Firefighters Test New Automated Voice Dispatcher Steve Keeley, the Superintendent of the Boston Fire Department’s fire alarm division, gave NBC10 Boston a look at the “Purvis Systems” alerting system. 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