fire July 5, 2019 7:05 am 2 Triple-Decker Homes Damaged in 4-Alarm Fire A neighbor tells NBC10 Boston he believes the 4-alarm fire that displaced 20 people in Dorchester was sparked by fireworks. US & World Videos 2:40 Cambridge bans right turns on red lights 2:23 Friend of John O'Keefe testifies in Karen Read trial 1:57 Tensions escalate as protests across Mass. colleges continue 2:05 MIT students suspended amid pro-Palestinian protests 0:21 Man arrested in Centerville stabbing that sent victim to hospital