I listened to a podcast about this, honestly, it was horrendously bad. Basically raped dozens of gymnasts over years.
Did everything he could do while keeping his clothes on. There were also allegations of literal drugging and rape. Basically the girls felt awful but thought "hey, he's a doctor" the few that did speak up were silenced. Their parents (even when in the same room) couldn't really see what was happening and trusted him because he was a doctor. The parents that did speak up were again, silenced and threatened. It was made very clear that causing problems for USA Gymnastics was the end of your career. It was truly awful. He has to be the most prolific sexual predator in US history.