This morning, my thoughts of what happened to Kiely have changed just very slightly from what they have been, pretty much since the beginning. I had always felt like Kiely had gotten very impaired at the party, and had an accident on the way home, made a wrong turn or lost control of her car somewhere, and is probably in water, and just has not yet been located.
As more information <modsnip> about the night of the party comes out, I am more inclined to believe that Kiely may have, in fact, met up with some older people who had harder drugs than perhaps she may have had experience with, and I fear she may have either driven, or been driven, to another location to continue to party, after leaving the Sanctuary. I believe there, it is very possible that she may have succumbed to a lethal mix of alcohol and drugs, and she was either left there, and someone drove her vehicle away to some other location, and neither she nor it has yet been found, or, she was placed in the car and driven somewhere that both she and the vehicle could be well hidden, in water most likley.
It seems very "duh, ya think", but I think finding her car is key to figuring out what happened, and to finding Kiely. JMO