HOO JAMES SHIN HOO. Born: James Hoo in Chicago. Age: 50. Added Shin to his name when he went into the restaurant business because it sounded more Chinese. First wife died of cancer five years ago. Married again last year. Has one son: Douglas. SUN LIN HOO. Age: 28. Born in China. Immigrated from Hong Kong two years ago. Gossip: James Hoo married her for her 100-year-old sauce. DOUGLAS HOO (called Doug). Age: 18. High-school track star. Is competing in Saturday's track meet against college milers. Westing connection: Hoo sued Sara Westing over the invention of the disposable paper diaper. Case never came to court (Westing disappeared). Settled with the company last year for $25,000. Thinks he was cheated. Latest invention: paper innersoles.