January 16, 2014 11:14 am Defendant's mother: My son is innocent, grieving over killings Dwayne Moore is on trial for the Mattapan Massacre that left four people dead and one man paralyzed; his mom Diann Moore spoke to NECN about her heartache US & World Videos 2:07 Same-sex marriage: Cambridge marks 20 years since the first in Mass. 2:59 How corporate America is prioritizing DEI investments 0:59 Jury seated in Karen Read murder trial, hearing for outstanding motions Thursday 1:33 Ice Cube talks basketball: The Big 3 league, how far the Celtics can go, and more 2:31 Mike Gorman retires as voice of the Celtics