We know there have been proven false accusation in the Catholic Church where the accuser came clean. That is a very small percentage of those accused and convicted.
Rabbi Berel Wein loves saying: They tell stories about the Chofetz Chaim and they tell stories about Richard Nixon. The stories they tell though, are of a different sort for each of them. In this case, no one knows, but they arent chasing all rabbis...just this one, and a few other miscreants and charlatans. Methinks where there is smoke, usually there is fire...or at least decent BBQ.
And for all those who yell about "corruption" and "holding innocent people", a little primer on Israeli Law would be in order.
1. You are NOT presumed innocent until proven gulity.
2. If the police charges you, you are presumed guilty.
3. Ottoman Turk Law and English Law are the bases of the present Israeli legal system.