New here, and have been devouring everything i can about this case. I do believe the tumblr listed before is hers, there is just too much of a coincidence that there is another Canadian girl who is also planning a trip to LA.
Some thoughts:
1) I would not read too much into the diagnosis of bipolar in so far that this is a pretty typical diagnosis of a young, privileged girl who was a bit different. If you search Tumblr for "bipolar" you can find many similar young girls with artsy interests.
2) I don't think she was psychotic or in the midst of an episode when she got into the elevator. I live in the Bay Area and grew up in NYC, I've seen many homeless folks freaking out in the street and she just looked drunk. She was a very small person, maybe she had had too much, or maybe she had been roofied or been experimenting with drugs. Psych meds and alcohol can lead to interesting consequences.
My personal elevator theory is that she met a hotel guest she was partying with and was hanging out in their room (on the 14th floor), things got bad and she decided to go back to her own room. They followed her and convinced her go back to their room. When she is counting and talking, it looks like she might be trying to convince them of the reasons she has to leave (she is slated to check out 2/1), so maybe she is counting those things. He convinces her and we never see her again.
There are so many unanswered questions in this case. Where is her phone? If she did lose her phone, I imagine she bought another one. A burner phone from Walgreen's costs around $50. At the very least, she must have used the Internet to upload photos from San Diego and chat with friends back home. Who was she talking to?
My gut feeling is this perp is someone who knew this hotel well (former employee or frequent visitor, maybe a john?), who befriended her, and is an experienced rapist or sex offender. Dumping someone in a water tank is not the first place many would think. She was naked, none of her clothes or glasses were found and he managed to keep her hidden for a while. I just don't think this was an accident.
Sorry for the long post as a first-timer! I'm a woman who travels alone frequently and this case really hit home. Nothing like this has ever happened to me. I'm very lucky.