Grand jury charges 4 Audi managers in emissions case By TOM KRISHER, AP Auto Writer DETROIT (AP) — A federal grand jury in Detroit has indicted four Audi engineering managers from Germany in a widening diesel emissions cheating scandal. Richard Bauder, Axel Eiser, Stefan Knirsch and Carsten Nagel were named in a 12-count indictment alleging conspiracy, wire fraud and violations of the Clean Air Act.