March 23, 2012 6:38 pm D.C. Residents Gather to Support Trayvon Martin News4’s Derrick Ward has a look at a rally on Capitol Hill and a vigil for Trayvon Martin and his family in Anacostia, as calls for justice in the Florida teen’s killing grow louder nationwide. Local 3:28 Social media and teens' mental health: A psychiatrist weighs in 1:41 DC-area police ramp up traffic enforcement in pedestrian safety campaign 3:05 ‘We need real liberation': George Washington University pro-Palestinian protest enters fifth day 2:17 GW asks to students to move pro-Palestinian demonstration 3:01 “It's 100% different”: Community reflects on emergency curfew at National Harbor