September 19, 2017 2:00 pm Backyard Bonanza: Boy Finds Mastodon Tooth When Owen Vettraino of Birch Run, Michigan grows up he wants be a builder and create large skyscrapers, but his goals may change due to what he found beneath the ground. 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
