An asset disposition firm is the winning bidder for the idled Columbus Castings factory, putting into question the future of the longtime South Side employer. On Friday an affiliate of White Plains, New York-based Reich Brothers LLC bid $29.7 million for the foundry's assets, according to bankruptcy court filings. The bid bested an offer of $28.1 million by an entity calling itself Columbus Operations LLC. Reich Brothers says it " focuses on the acquisition and disposition of distressed and...