Oh sure, 6 or even 15 years.. By all means. That's just enough time to let him forget whatever tiny fraction of guilt he may have felt for his crimes allowing him to do it again unfettered by a guilty conscience.
She'll be 22 by then, hunt him down and cut off his genitals. Of course this will be in Canada, so she will only get a slap on the wrist and be told "Now now, let the Government determine what punishment is best dearie". Eh.