And it's no surprise that people died, because you don't know how much gas each person is going to inhale, what position they'll fall in when they become unconscious, and so on. There were, in fact, only a couple of people who got shot in this episode.
Y esas muertes no sorprenden porque uno no sabe cuánto gas inhalará cada persona, en qué posición caerá cada uno, cuándo se desmayarán, etc. En el episodio hubo sólo un par de disparos.