Since I have a Reuters account as a photo buyer, I looked this other photographer up (I also figured logging on, which I almost never do, might give me a lead as to where to send you). He was definitely there, and his photos of the event are extensive.
My next instinct was to see if anybody had bought the photo and displayed it on the web at a larger size, and indeed, somebody has:
This detail can't be from another image just because I can see what he's got up on the Reuters site.
They were probably taken within minutes or even seconds of each other from almost the exact same spot at almost the exact same angle at the exact same time. At first glance, they're indistinguishable from one another - but on closer inspection as the others noticed, they're not the same. The thing that tipped me off was the height of the blast wall relative to the nose gear door and the "chin" of the aircraft. His lens has more curvature than yours, for sure, the edge of the randome on his is much more warped.