I may be wrong, but do they even need to build a case? Didn't he plead guilty and then flee before sentencing? Please, correct me if I'm wrong.
I think that's where some people are causing confusion in the whole thing. He pled guilty to something like unlawful sex with a minor so he was never convicted of actual rape. Now, my opinion is there is a HUGE difference between some plea deal that is made between a rich man and a D.A., and what that rich man actually did.