February 2, 2014 7:42 am Defense begins first full day in Zimmerman trial Defense calling their witnesses to the stand, trying to show George Zimmerman was protecting himself when he shot Trayvon Martin US & World Videos 0:39 Warwick officer shoots dog after attack 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 1:54 Man drives into ocean during Oak Bluffs police chase