Mayor Frank Melton of Jackson, Miss., swept into office in 2005 promising to take a hard line on criminals and make the city safe. But more than a year later, the gun-toting mayor has everyone from the local district attorney to the FBI looking into his practices. The ACLU, NAACP and others have accused the mayor, who is black, of racial profiling. He's been indicted on charges that he directed a sledgehammer attack. And now there are calls for his resignation.