Investigators are looking for other participants in the Madoff investment scandal besides Bernard Madoff who were involved in the Madoff investment scheme, despite Madoff's assertion that he alone was responsible for the large-scale operation. Harry Sussman, an attorney representing several clients of the firm, stated that "someone had to create the appearance that there were returns," and further suggested that there must have been a team buying and selling stocks, forging books, and filing reports. James Ratley, president of the Association of Certified Fraud Examiners said, “In order for him to have done this by himself, he would have had to have been at work night and day, no vacation and no time off. He would have had to nurture the Ponzi scheme daily. What happened when he was gone?