There is evidence he raped a child.
I wouldn't say that is no evidence. It's not proof, I agree with that. But did he bother to ask her age?
She'd have to be below the age of 13 for the term you used. There's another term for 11-14 years old, approximately. I'm not sure there's one for older teens. I'd certainly call it disgusting, creepy, abusive. But not the P word though. Using the term I correctly actually undermines what he was involved in. It was really bad enough. Calling it something else in away let's him get away with it because supporters can say "But, well, she wasn't 6." No, but that doesn't make it ok that she was older and sex trafficked!!
Will he come back in in the future
I doubt it! I do wonder how it feels to be the first born with all the weight of that, and see your mother favourite your younger party-boy brother. I can only imagine it wasn't easy. And then you get into power. His bringing your institution into disrepute gives you the perfect opportunity to slim down, as you'd previously said you would. Would be odd to let him in. He probably couldn't wait to get him out!