Thanks for all the comments so far! The update is that we just went to the police and asked to remain anonymously which worked. But they effectively told us that there’s nothing that they can do and the affected women should file a report online and that’s it.
This is a very frustrating outcome because the person knows where we live and has been to our house and lives in walking distance. One of the affected women (foolishly imo) reached out to the person and the profile on the snuff page got deleted shortly after, which makes it even more likely that it’s actually our suspect. They also recently created a profile on theync.net.