 While at Hales, King appeared on "The Oprah Winfrey Show" in an interview in which Oprah characterized him as an "Angel".During King's five-year tenure as President of Hales, 100 percent of the school's graduates were admitted to college.Two years after departing Hales, King founded a network of all-male public high schools, Urban Prep Academies, in order to address Chicago’s woefully low rate of college graduation for black males.