"Where has xo been? I still do not understand the need for posting in riddle."
I don't know where xo's been, but IMO he/she knew something. Too many references to what already has taken place. I've gone back to xoxoxox posts by searching for "user," and I've read them over and over. I just can't figure out the chess stuff. I was frustrated about the riddles, too. But xo always said follow the DNA, posted the article about determining the race thru DNA, and said it's someone higher-up. That's why I said before that I feel whomever had sex with her before she was swabbed was a black official. Then again, xo could have meant that they (police/DA) were covering for her because she was the mistress/escort/lover of someone higher up.
I wonder if that explains whey the first DNA report by the SBI didnt' find anything...
Very well could be ...
I haven't completely dismissed xo's posts, and have also reread the posts a few times.