The necessary level of evidence to pull parole (guy’s on parole) is VERY LOW.
True, but at this point the real, admissible, evidence that applies specifically to him is pretty much non-existant.
If they can find the girl, and she confirms that he is the one (apparently there may be a possibility that there are mulitiple members of with the same name) she reported as raping and beating her, and she will sign a complaint to that effect, then they will have enough evidence to pull his parole.