Hong Kong tycoon's sons inherit $3 billion stake in developer

Two sons of late Hong Kong tycoon Walter Kwok have inherited a $3.1-billion stake in Sun Hung Kai Properties, which has a market value of about $41 billion. Walter Kwok died in October at the age of 68 after suffering a heart attack two months earlier. He was kidnapped for ransom in 1997 by a gang leader called "Big Spender".