You have this superbly clinical way of writing, so that every aspect is clear, and the picture slowly builds up to something spectacular.
This type of Big Brother world terrifies me, but I think people have written anough on it to prevent it from occuring. Still, the idea of executing people from behind a locked door is a truly cowardly act.
Your tags reveal a lot. The questions posed there are most interesting, and could turn the story on its head. I naturally assumed that all thirteen men were in the same situation, yet what if they weren’t? What if the vote was, in some way, rigged?