(multimedia) (CBS News) SANFORD, Fla. – It appears Monday will be a big day in Sanford, Fla., where unarmed teen Trayvon Martin was shot and killed by neighborhood watch volunteer George Zimmerman exactly a month ago. Thousands will gather here in the afternoon to rally, and then hear Martin’s parents confront city leaders. Sunday night, dozens gathered outside the gated community where Martin, 17, was shot. Zimmerman claims he fired in self defense, and he remains free. “It ain’t right and we will fight!” chanted one protester. On Sunday, church services from Florida to Chicago turned into calls for justice. In Eatonville, Fla., Rev. Jesse Jackson implored the faithful to look at Martin’s killing as a wakeup call in a new civil rights battle. “What we know,” he said, “is that the Department of Justice is now involved, but the killer is still walking the street free.”
