Wow! Those pics are amazing! But I do personally doubt the "leaving" scenario. He was finishing up his masters, first of all. Secondly, I know the area and I just believe that the frat brother lying and the area he was headed to....something happened to him and the frat brother(s) know. His mother's own intuition tells her the same. Now, the phone being left in the bathroom is puzzling for sure but it could be coincidence. For me, knowing the area as I do those other factors far outweigh the phone being left on the bathroom sink.