Man struck, killed by SUV in Hilton Head January 2, 2012 at 6:43 PM EST - Updated June 26 at 5:26 AM HILTON HEAD ISLAND, SC (AP) - Authorities say a man walking down U.S. Highway 278 on Hilton Head Island has been struck and killed by an SUV. Investigators told the Island Packet of Hilton Head that 30-year-old Antonio Diaz was walking in a lane of the highway around 3 a.m. Saturday when he was hit. Troopers say the driver of the SUV will not be charged, Diaz is the fourth pedestrian killed in Beaufort and Jasper counties in the past three months. Authorities say a 19-year-old man was hit by several cars Friday on U.S. 17 in Yemassee. Troopers say pedestrians need to walk on the shoulder of the road at all times. Copyright 2012 by The Associated Press. All rights reserved.