I'm sure some one in here already mentioned it but people in her age range rarely die from pneumonia.....unless they have a compromised immune system
Friend of mine is a pathologist and when Bernie Mac died he told me that when ppl die from aids it's usually because they caught pneumonia and the immune system was too weak to fight it. A girl I know father died the same way Aids->pneumonia.
Maybe would be good in another thread (this isnt an RIP thread but still), but the assumption is she could have had another health issue albiet AIDs or the disease Bernie Mac had?