A front-page article on Sunday about former President Bill Clinton 's friendship with Ronald Burkle , the California financier and grocery chain operator , referred incompletely to the fate of Mr. Burkle 's supermarkets during the Los Angeles riots of 1992 -LRB- an event that led Mr. Clinton to seek out the businessman after being told that rioters had spared some of his markets because of his reputation for fairness -RRB- .