lowell June 14, 2022 6:15 pm Investigators Search for Missing 3-Year-Old Boy in Lowell A large search team is trying to find a 3-year-old boy last seen in the backyard of his babysitter’s home. US & World Videos 2:09 President of MIT calls for shutting down pro-Palestinian encampments 1:00 Three dead in apparent murder-suicide in Lowell 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty