I don't think we know but he does mention all the other social media of her and her mother was all deleted except for this Tumblr source. It was probably just discovered by a search on her name. Or perhaps Rays clients, the victim's relatives alerted him to it.
Well I think we can rule out LE or Tierney sharing any info with him that isn't publicly filed and known and we haven't heard that this is I don't think. So that is PROBABLY not how he knows.
Internet sleuths and those with channels when people are named and even when new cases hit the news, like a new murder, instantly go searching SM and everywhere for the names of perps, victims, family members and more and that's the most likely. Plunder has for instance learned to screen shot things because some of them take their SM down pretty darned fast when something like this happens. He himself may have done it or the victim's family member/as you say but this sounds like there are vestiges of an account and some pics left online. I kind of think it more likely that someone she shared with had some saved or even that someone screen shot some and then the account was taken down before they could finish or some such or was the entire account still in existence, it sounded like only some parts were left... Hard to say. Or a YTer alerted him but if so they kept it under wraps because first I heard of any of this was through him. I suspect it was one of these things I mention here.
Tierney talks of how all the torture and bondage porn found of CB's was similar to Jessica and someone, I forget, etc. Ray talks how V's images are similar. Which is it or is it both?
I also hope CB's torture porn, etc. is images of others and NOT his personal porn and these women are truly in the photos. It would not be unusual for him or an SK to photo such imo...
The reason I wonder where Ray came by it as he'd better be, with what he is saying, pretty certain this is Victoria's. He does say I believe some of the images are ones she liked of what others put up or drew that she saved or liked. Not all I do not think were hers, is that how you understood it?
Now if LE shared it and have it too and said it was V's, then that's pretty solid but they haven't verified any such thing to my knowledge.
It is some very dark stuff, that's for sure, and with what her dad supposedly did, I find it almost impossible to believe it's a coincidence she was into or doing such drawings and so forth... She at LEAST knew what he was doing or his interests or ran into pics or a victim or something and if she knew, then mom most definitely knew. And from there, may or may not have been part of it all...
V's remarks of sex and torture and pain and death or however she put it all being the same are also disturbing. I can't help but at least have the question cross my mind, was she molested by him, abused, or tortured in any way... I mean was CB who clearly hated women somehow the perfect dad, hub and family man at home. Some SKs they claim somewhat were but it's a stretch to believe it... Even Kerry, Rader's daughter refers to abuse. One time she will talk of how normal all was but then she will make references to things like abuse and never quite clear with her sometimes and I've seen and listened to her plenty. Both she and Happy's daughter went silent after being quite vocal and I wonder why... Actually I don't.
I'll also say this, even with Tierney making a point of her being away with the kids and not involved, if there was any questions at all about any of them, he would NOT voice them at this point and would never unless certain imo. He also would likely make her feel she is NOT suspected. While they continue to investigate and it will be CB first UNLESS something so obvious and proof pointed to her or daughter imo.
This case is going to keep on giving and giving and the victims are going to come for years once they are through all the LI ones, then the NY ones, and then other places and so on.