September 6, 2019 5:30 am Candidates Head to New Hampshire for Democratic Convention As many as 19 of the 2020 hopefuls are heading to the Granite State this weekend for a Democratic Convention. US & World Videos 2:27 Mother speaks out after school shooting threat in Milton 0:39 Police respond to incident in Whitinsville 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 3:41 Cool air to linger over Boston into the weekend