Sexual Assault. This will be the proven charge.
Rape? Since she alledgedly consented, it is hard to prove that.
He may have kissed her or touched her.....who knows?
Oh, he did a little more than just touch her.
As to who knows... Doctors,deputies, staff at the hotel, there are quite a few that can testify as to what they saw. There are photographs, medical records,etc. It will all be part of the trial. Exactly what it will tell, you will see in trial.