CLOSE

The mother of slain teenager Trayvon Martin told a National Urban League gathering in Philadelphia on Friday to use her tragedy to stop the same thing from happening to another child and she blamed Florida’s “stand your ground” law for allowing her son’s killer to go free.

Visit NBCNews.com for breaking news, world news, and news about the economy

Trayvon Martin’s Mother Speaks: ‘Use My Broken Heart’ [VIDEO]  was originally published on newsone.com