Will gave Russell a glance as the boy found money, but otherwise didn't pay too much more attention to him. The man still crouched on the floor probably wasn't going to get up, but the other one had a good chance of fighting through the terror and attacking him - which was the sort of thing he could admire as a soldier, and laugh at as something else - so he kept the bayonet aimed at him. He hadn't given much thought to the first man, the one he'd hit. He'd assumed that one had gone out like a light.
So it was a surprise when he heard Russell gasp behind him, and barely had time to turn around when there was the noise of running, the sound of a blade meeting its mark. Will saw the kid hit the first man and shove him the other way - taking Will's back out of the path of another knife.
It was all the second man needed to try and attack, but he got a fist to his face for the effort. He followed it up by bashing him with the bayonet, it having been ineffective the first time, and taking him down - a second hit ensuring that - before moving to the first man, whose neck was pouring blood. Russell was standing nearby, eyes wide, clearly unable to grasp just what he'd done.
Will could, though, and he could appreciate that the kid may have just saved his life. On the other hand, it did probably mean the end of their hunting.
"Let's go. Get back outside," he instructed as he hit the knife with his foot, wrenching it in the man's neck for a slightly faster death by bleeding. With one last look at the third, terrified man - who was now cowering behind a table - Will took Russell by the shoulder and pushed him out of the building. "You did what you had to. Don't let it get to you," he added as they went, because he recognized the look in Russell's eyes.