""If Trayvon was of age and armed, could he have stood his ground on that sidewalk?"" --President Barack ObamaThe 2012 killing of Trayvon Martin, an African-American teenager in Florida, and the subsequent acquittal of his killer, brought public attention to controversial "Stand Your Ground" laws. The verdict, as much as the killing, sent shock waves through the African-American community, recalling a history of similar deaths, and the long struggle for justice. On the Sunday morning followin