I think it is POSSIBLE that Holly was mistaken for Whitney, that's all. Aapparently one of the videos she posted had info about thier homes, etc...or that Holly encountered someone who was after WD and decided to go through Holly to get to her...just an option that cannot be dismissed with what we know.
I can see how someone may have been drawn to Holly through her close affiliation with Whitney- and it is so easy to 'find' someone these days- you don't have to put yourself on youTube to make that possible, that's for sure.
That's why I suggested we look at venues where Whitney and Holly may have connected prior to Holly's abduction. A list of public performances, shows, auditions, recordings, tapings, etc that Holly may have attended? Holiday functions, parties- anything. And locations of those?
These are all things we can sleuth out, I think.