News Polanski - Extradition Request to US

I don't understand this obsession with bringing him back to the US to make him stand trial. The girl in question is now in her 50s and has moved on.
 
I don't understand this obsession with bringing him back to the US to make him stand trial. The girl in question is now in her 50s and has moved on.
But does that make it ok? She was a kid when he molested her, and he gets all these awards and glory...while her life was irrevocably changed. Does she say she has "moved on"?
 
He ran from US prosecution over his (alleged) rape of a drugged child.

Should there be a statute of limitations on that? How many years should you need to be on the run from rape before the US says "that's okay, all is forgiven?"