** ADVANCE FOR SUNDAY, AUG. 19 **FILE**Newark Mayor Cory A. Booker, center, greets Shirley Little, left, outside a polling place on election day in Newark, N.J., in this May 9, 2006 file photo. The execution-style shooting in Newark on Aug. 4, 2007, of three college students, has thrust Booker into a harsher spotlight, unlike one that usually presents him as the harbinger of a brighter future for the downtrodden city. (AP Photo/Mike Derer. File)