NEW ORLEANS - Five people ranging in age from 16 to 19 were killed in a street shooting early Saturday, the most violent crime reported in this slowly repopulating city since Hurricane Katrina hit last August. All were believed to have been gunned down while inside a sport utility vehicle that was found rammed against a utility pole in the Central City neighborhood just outside the central business district. Authorities said they were looking for one or more suspects but did not elaborate. Capt. John Bryson said police think the shootings were either drug-related or some type of retaliation attack....