Panzerfaust, the St. Paul-based white-supremacy record label that made national headlines in the fall, has closed shop over questions of the owner's race. "They are out of business," said Minnesota Gang Strike Force investigator Dan Michener. Byron Calvert, 33, who was Panzerfaust's spokesman and public face, accuses his former business partner, Anthony Pierpont, 38, of having a Hispanic mother. "I told Anthony that he had no choice but to walk away from (Panzerfaust) before this became public," Calvert says on a Web site linked from the now-defunct Panzerfaust site. Pierpont was arrested in his South St. Paul home on Nov....