Civil rights activist Jesse Jackson stepped into the row over the shooting of an unarmed 17-year-old by a neighbourhood watch volunteer in Florida at this church service in Eatonville.
He was addressing a crowd of 1, 600, many sporting hooded sweatshirts similar to the one Trayvon Martin was wearing when he died.
Jackson says Martin is a martyr.
SOUNDBITE: JESSE JACKSON, CIVIL RIGHTS CAMPAIGNER, SAYING (English):
"How do we take the light of the martyr. Travyvon Martin is a martyr. He's not coming back. He's a martyr, murdered and martyred, and now we must illuminate the darkness with the light that comes from the martyr."
Martin was shot dead by neighbourhood watch volunteer George Zimmerman who believed he was suspicious.
But Zimmerman has not been charged or even arrested because he says he acted in self-defence.
The killing has unleashed a wave of protests and accusations of racism.
