Hos and pimps.
Actually, someone in another forum that I frequent posted a guess, early on, that this white girl arsonist would turn out to be connected to Brooks - but not as a "girlfriend". Yep, this particular person thinks Rayshard was her pimp.
Something was also mentioned about the fact that Ms. White doesn't appear to bereaved, not in the least. The images from the arson evidence video show her having a good ol' time.
All speculation, I know. It'll be interesting to see if any more of this guess pans out, though. If the detectives picked up on the same things, they might have some idea where to look for her - and other aliases she may use.