It was 5:06 a.m. on a Tuesday in September 2013 when sex crimes Det. Derrick Williams caught the call. It came from the hospital. It was a distraught woman. She was saying she had been raped.

She told Williams a familiar story of French Quarter trespass: She’d hit the clubs the night before, she said. Drank a lot. Met a man. Went to his house. And awoke the next morning to find him on top of her, naked. But she told Williams she had never said yes to sex.

Williams typed up a brief report. He labeled the incident a rape. But Case No. I-31494-13 wasn’t quite ordinary. The accuser was a former cheerleader for the New Orleans Saints. And the alleged rapist was Darren Sharper, a hero of the Saints’ 2009 Super Bowl team, former Pro Bowl player and broadcast analyst for the league’s television network.

If his name was John Brown, he would have been in jail,” one criminal justice official with knowledge of the case said. “If a woman says, ‘He’s the guy that raped me,’ and you have corroborating evidence to show they were together and she went to the hospital and she can identify him, that guy goes to jail.” Sharper did not — and continued an unchecked crime spree that ended only with his arrest in Los Angeles last year after sexually assaulting four women in 24 hours.