The photos are at the heart of a scandal that has rocked McKinney, an affluent bedroom community north of Dallas. By many accounts, the group of cheerleaders, known as the "Fab Five," were out of control—an elite social clique that flagrantly flouted school rules but faced few sanctions. In many ways, they seemed like the stereotypical "mean girls" that periodically trigger bouts of consternation among parents. But there's an added wrinkle to their tale: the Fab Five's alleged ringleader was the daughter of McKinney North's principal, Linda Theret.