Good copy & paste job, blaze. Awesome.....
From experience and research, nobody seems to actually be able to find her. She's most likely just a cover girl for the game and a name in the LCPD database.
There are some stupid videos on YouTube that'll jerk you around, but here's a couple that are most likely to be true:
Personally, I haven't seen her and don't really want to waste the time. If you can, document that shit and show it off everywhere. You'll be a hero.