Jean, fortunately, is willing to accept that explanation. He wonders, briefly, what exactly Reiner and Bertolt were guarding that required them to shoot people, but he isn't going to ask. At this point, he doesn't really care.

He watches Reiner for a moment, then bends over and very carefully puts the gun on the ground. Then he comes up to the big man and puts a hand on his shoulder. "It sucks, doesn't it?"