deadly shooting August 20, 2021 7:17 am Police Seek Person of Interest in Deadly Chelsea Shooting A teenager was fatally shot Thursday night in Chelsea, Massachusetts, and police are looking for her killer. 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