Merrimack Valley Gas Explosions June 23, 2020 6:18 am Columbia Gas to be Sentenced in Merrimack Valley Gas Disaster Columbia Gas will be sentenced virtually by a federal judge in Boston Tuesday in connection with the Merrimack Valley Gas Disaster. US & World Videos 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes 6:03 Tensions rise during campus protests at MIT and Harvard 6:19 Police surround pro-Palestinian encampment at MIT 5:12 Karen Read's defense pushes the question of credibility
