` ::::After more research I'll retract what I said about the classroom being the south corner. I was going on my memory of an aerial photo showing the south corner marked, but I can't find that now. The only thing I can find referring to a specific location is this transcript of an early CNN report, in which the reporter refers to the ``southeast`` corner. Due to the NW-SE orientation of the building, there is no southeast corner, and he must have been referring to the east corner. That contradicts my memory, so neither is particularly reliable or definitive. If Gordon takes more photos, he needn't go out of his way to capture that south corner. If anyone else has better information about this, feel free to speak up.   `