I hardly think that ALL the badly wounded were buried in the rubble and that only the slightly wounded were outside the buildings.
In my experience it would be more likely to be the other way 'round.
But that's only an opinion and not based on the hard facts that were obviously available to Professor Pounder.
But wait; upon re-reading the article I find that he says; ""We draw the conclusion that they were allowed to die where they were," Professor Pounder said."
That sounds like an opinion to me, based on what he expected to find instead of what he found.

troll