Participants in the Madoff investment scandal Stanley Chais, a philanthropist who invested heavily with Mr. Madoff, and Carl J. Shapiro, one of the money manager's oldest friends, are among at least eight Madoff investors and associates being scrutinized by the U.S. attorney's office in Manhattan. Prosecutors are continuing to probe Madoff family members and employees. Others include: Frank Avellino, a Florida accountant who ran an investment fund that invested client money; Noel Levine, a real-estate investor who works out of a two-room office on the 17th floor, next door to Madoff's fraudulent investment operation, and Palm Beach investor Robert Jaffe, a son-in-law of Mr. Shapiro who
Pyramid scheme "captain" is the person at the top of the tree, having received the payment from the eight paying passengers, once they leave the scheme they are able to re-enter the pyramid as a "passenger" and hopefully recruit enough to reach captain again, thereby earning a second payout. Matrix schemes use the same fraudulent, unsustainable system as a pyramid; here, the participants pay to join a waiting list for a desirable product, which only a fraction of them can ever receive. Since matrix schemes follow the same laws of geometric progression as pyramids, they are subsequently as doomed to collapse. Such