As someone echoed before, I wish LE can find video of the 50 minute block of time between when Hannah has contact with her friends and is seen on video. What was she doing? Where did she go? I imagine there is video of her somewhere it just has not been unearthed yet. And to me, although she looks a little drunk, she also looks like she is on a mission when she is walking. Now, that could be moving quickly away from someone who was following her, or she was walking to meet someone somewhere. And if she left point A (unknown location) and was meeting someone or going to point B, it's possible she started off knowing where she was going, and became disoriented/lost along the way. Meaning when someone has told me to meet them somewhere and they give me a location and I know the general location, I'll say "oh yeah, I know that place" when I really mean I sort of know the general vicinity and hope I can find it.