A New York judge unsealed the records of six former Dewey & LeBoeuf employees who pleaded guilty in connection with accounting fraud at the law firm, Reuters reported on Friday. The records offer a fresh peek into the government's case against top executives at the defunct elite international law firm and how key witnesses might testify against them. The employees, who range from Dewey's controller to its billing director, agreed to cooperate with prosecutors who have targeted the firm's top management. Dewey's former chairman, Steven Davis, Executive Director Stephen DiCarmine and Chief Financial Officer Joel Sanders were charged March 6 with taking part in a scheme to cheat banks and investors as they struggled unsuccessfully to keep the law firm alive.