The nephew of former Chicago Mayor Richard Daley was indicted Monday for involuntary manslaughter in the 2004 death of a 21-year-old man outside a Chicago bar, and a grand jury is continuing its inquiry into whether authorities covered up or impeded an investigation of a relative of the city's most powerful man. Richard Vanecko, 38, was indicted by a Cook County special grand jury in the death of David Koschman of Mount Prospect. Koschman died days after he fell and struck his head during a fight with Vanecko outside a bar in Chicago's Gold Coast neighborhood.