When the Colts selected Stanford LB Bobby Okereke in the third round, everyone - media, the Colts' brass, his Stanford coaches - raved about his leadership and character. However, there was an issue during his playing days that he made the Colts aware of before they selected him: a sexual assault allegation.
Colts GM Chris Ballard said he felt Okereke was honest with them and no criminal charges or discipline by the university was ever brought on the rookie linebacker. That said, as Keefer states in the article, Stanford's Title IX panelists at the school voted 3-2 on two occasions in favor of the Okereke's accuser, but the school required at least a 4-1 decision for disciplinary action.
Regardless, even a past allegation of sexual assault in serious, and it's something that Ballard says "falls on me" if Okereke has a similar issue as a Colt.