[caww]

......"the bomb was binary, and was not assembled when it went off. The only thing that detonated was the primary charge, and the much larger secondary charge did not go off.".....

From this photo it appears he was well strapped with secondary devices...

[Haiku Guy]

Interesting photograph. That is a pretty large pack on his back.

[ClayinVA]

The explosion blew him out of his shoes.