Is There Any Way To Save The Guy You Get The Cell Phone From In Paris?

The guy who was shot and was hiding out in the vault. The henchmen are going to set off an explosion outside the door after you talk to him which will kill him, and it will kill you as well if you stay there. I tried shooting them from overhead on my way out but that just made the explosion go off ahead of time. Are you not supposed to save that guy or what?