I am confused. They obviously think she disappeared around 7'ish. What about the neighbor who saw her later. Was he just confused, or did he see her, or....?
Also, I really hate hearing people say, as part of their theory, that perhaps they were doing drugs, smoking weed, drinking....... I'm not naive, but I really feel like she was unlikely to be doing these things. What she did privately is her business, but to suggest she went off with druggies and something happened is really unnecessary. It's almost like victim bashing. That's JMO.