Henry Sy, who became a billionaire by parlaying a shoe store into the biggest retailer in the Philippines, has died. He was 94.He died in his sleep this morning, his daughter Teresita Sy-Coson and Jose Sio, chairman of SM Investments Corp. said. Sy had a net worth of US$7.2 billion, according to the Bloomberg Billionaires Index, making him the richest person in the Philippines.“This morning Mr. Sy passed away peacefully as a happy man,” Sio said.Sy’s company started as a shoe store in 1948.