students into a string of prestigious universities. 50 people nationwide. two exam administrators. one exam proctor. one college administrator. nine coaches. 33 parents. reporter: the center of the scheme is prep organization the key, founded by william singer. he pleaded guilty to four charges, including money laue i laundering and obstruction of justice. wealthy parents paid singer about $25 million in total to guarantee their children s admission to elite schools. reporter: the scheme involved two kinds of fraud, parents paying a college prep organization to help their children cheat on s.a.t. or a.c.t. exams and others paying to allegedly bribe college coaches to help admit the students as athletes regardless of their athletic skill. singer helped parents take