Anyone know what happened with this case?

I came across this item online today. It’s so horrible, I can’t get it out of my head. Does anyone know if anyone was convicted or even charged in this case? A lot of the perps can be clearly seen. Not sure if posting the link here is appropriate or not. I know it’s definitely walking the line, so be forewarned, it’s hideous.

Doesn’t look like there were any arrests.

From this site:

No one is under investigation…?!

How can that be? There are a dozen or so faces clearly visible, a woman is publicly humiliated and abused, and there it rests?! Isn’t there someone supposed to follow up on thses things, like, maybe, a prosecuter?