Two years ago, at one local school, there were 8 arrests of teachers for sexual abuse, etc. I believe they had a pedophile ring where, in addition to sharing their crimes, they protected each other from being exposed. Some of those arrested had been highly regarded - they hide their crimes so well, that people don't suspect them.
This is rampant throughout our society and at some point, we probably won't be too surprised.
Note: the eight arrested were the ones that were implicated by survivors' testimonies, many survivors.
Since the abuses had been ongoing for years, I suspect there may have been more creeps but some slipped through the cracks for lack of witnesses.
I recall a news article from 25 years ago, that police had arrested a pedophile ring running in a town near mine. Their victims were two year old babies.
The good news is when they wind up in jail.