While there apparently is no local bidder interested in the Northern California Knight Ridder papers up for sale, the Associated Press reports that luxury homebuilder Bruce Toll of Toll Brothers wants to buy The Philadelphia Inquirer and Philadelphia Daily News. Brian Tierney, a Philadelphia advertising and marketing specialist, told the AP that he and Toll have enlisted prominent city business owners to join in a bid. Toll also owns car dealerships and other businesses. Tierney said he had called the offices of Dean Singleton of MediaNews Group Inc. in Denver, Ronald Burkle of Los Angeles-based Yucaipa Cos., and other likely bidders for the papers, hoping to form a partnership.