April 11, 2016
Josh Jackson, from Napa, California, competes in the slam dunk contest during the McDonald's All-American Jam Fest, Monday, March 28, 2016, in Chicago. (AP Photo/Matt Marton)
Josh Jackson, the country’s No. 1-ranked high school basketball player who vowed to keep his impending college commitment low-key, delivered on his pledge at 7:34 p.m. on Monday.