Often in these cases there is more than one accuser, usually completely unrelated to each other, and the consistencies in their accounts may make it almost impossible that they could have been fabricated (at least not without collusion, which can fairly easily be eliminated).
Likewise, even...
Good on you. I've heard people suggesting that the likes of Stuart Hall etc are being victimised & that they shouldn't get long sentences "because they're old and it was a long time ago", or simply because it's been in the media "therefore it's probably made up".
Sorry, but even if justice...