. >> reporter: miami p.d.sponded to the scene. 18-year-old high school student antoine darling arrested at gunpoint and charged with felony burglary. court records revealed darling, now a freshman linebacker at the university of cincinnati, had been arrested twice before. for marijuana possession to which he pleaded no contest, and a weapons charge which was later dropped. in the burglary case, darling completed an intervention program. a record the school evidently knew nothing about. >> we found that in many cases, even the coaches don't know the full extent of the players' criminal history. >> reporter: darling's criminal history was just a small part of a ground-breaking, six-month, cbs news/"sports illustrated" investigation, focusing on crime and recruiting in big-time college football. and what we found was striking. through an exhaustive series of background checks we discovered 7% of the nearly 3,000 players on si's 2010 top 25 preseason football rosters had been in trouble with the law. more than 200