not sure but if you watch the crowd in the foreground, they all seem to be looking to the left, then at the 31 second mark you i think you can see the building which doesn't look all that far away. maybe a football field or just a tad more at the 34/ 35 second mark. then at the 117 mark it looks like they are working on the injured in the stands.
"Never trust a weapon that you haven't personally test fired"
Jack Reacher
Jack Reacher