Sybrina Fulton, mother of Trayvon Martin, holds up a card with a photo of her son as she speaks at the National Urban League's annual conference in Philadelphia in 2013.
Sybrina Fulton, mother of Trayvon Martin, holds up a card with a photo of her son as she speaks at the National Urban League's annual conference in Philadelphia in 2013. Matt Rourke AP
Sybrina Fulton, mother of Trayvon Martin, holds up a card with a photo of her son as she speaks at the National Urban League's annual conference in Philadelphia in 2013. Matt Rourke AP