In Florida, there have been growing calls this week for lawmakers to revisit the state's "Stand Your Ground" law – a piece of legislation that figures prominently in the story of the story of 17-year-old Trayvon Martin's shooting. Martin, who is black, was killed while he was walking back to his friend's house from 7-Eleven during halftime of the NBA All-Star Game. George Zimmerman, the self-described neighborhood watch captain, claims he shot Martin in self-defense. Zimmerman has not been charged with any crime. Yesterday, Seminole County's state attorney announced that a grand jury investigation into the shooting will begin next month. Meanwhile, state lawmakers are calling for an inquiry into the self-defense law at the center of the case. Florida state Republican Representative Dennis Baxley was one of the original sponsors of the "Stand Your Ground" legislation in the Florida House of Representatives in 2005.