NEW YORK -- A leading independent bookstore, the Colorado-based Tattered Cover, has been sold to a group of investors and will become the country's largest Black-led bookseller.An investment group led by Denver natives Kwame Spearman, who will serve as CEO and operations manager, and David Back purchased the Tattered Cover for an undisclosed amount of money. The previous owners, Len Vlahos and Kristen Gilligan, will remain in an unofficial capacity through June.