I'm new to this case and have not read everything. Tried to start from the beginning but this video is really tripping me out. So, I want to say what I think I see before it rots my brain. Because I start thinking too hard and wondering too much. My mind will change a hundred times before I'm finished reading through the threads.
I think she was drunk. I believe she was drinking with someone in a room, someone who probably actually lives there instead of just traveling. I think this person told her of some awesome trick that the elevator would do if you push a certain series of buttons. She went in there, elaborately did it, wondered why the person who told her of this did not follow. Deal is, that person knows where the cameras are. So he lurked behind, he wasn't even close enough to cast a shadow or reflect on the opposite wall. I think he was further down the hall on either side. But someone was there.
The waving of the hands is pretty much what a good toasted woman will do when she is recanting a story. The counting out on the fingers is her telling this person exactly what she did. "I got in the elevator, I hit so and so buttons, and then I did so and so just like you told me to do. So what now? This is all it does? The door stays open? What a sucky trick!"
I know that this was probably mentioned, but what floor was that on? So, they don't have anything else of her in the elevator, though she made it to the roof? Her not jumping back into the elevator as it was closing makes me think that she stayed on the floor she started out with. She wasn't planning on going anywhere. I believe she was in for the night hence her outfit, just getting her drink on with a new 'friend'.
I believe her friend took her to the rook via stairs. I believe she died on the roof, and I believe she was hid in the tank. I can't believe it was suicide. I look at those tanks, and they terrify me. Who would want to go into one alive? Even if they wanted to die?
The only thing that freaks me out on the video is when the door shuts the first time with Elisa having left the elevator. There is a cut in that video. That door jerks about 6 inches. Like something was cut. Like a chunk was cut. Cut by LAPD? Why can we not see the time on the video?
Well, I have talked to much and will go back to reading some more. I'm sure I will be back as I have plenty to sift through. But all of the above, is simply my opinion. I have the right to change, debunk, or stand by my words.