Robert Onstead, founder and longtime chairman of Randalls Food Markets, died early Wednesday while on a family vacation in Italy. Onstead was in an airport in Sicily awaiting a flight to Rome when he suffered a heart attack. He was 73. Onstead's death shocked his family and Houston civic leaders, many of whom had considered him a personal friend for decades. "There are very few people who have ever worked as hard to promote, develop and to build Houston as Bob did," Drayton McLane, owner of the Houston Astros, said Wednesday. Onstead's son, Randall, had encouraged his father to run...