CEDRIC DEAN is a leader, an educator, and sometimes even a psychologist. But most of all, he is a mentor, motivating the misguided with the same sizzling enthusiasm that allowed him to transform from a gangster to a genius. Growing up in Charlotte, N.C., he had aspirations of being a thug, but after regimented years of learning, labor and lonliness, he preserved. Now he is committed to teaching the misguided the mistake in not learning from his mistakes.