Voluntary execution

We're in what seems to be a regular sized classroom in a high school. 30 or 40 people (men and women, mostly between 20-30 years of age) are (mostly) all standing up in front of rows of seats facing a firing squad of some kind (Nazi Germany, no?). They seem to have volunteered for this, however. From my perspective (from the executionees' right side) there are a few more gunners kneeling near me, ready to fire if something goes wrong. The first two or three rows are shot down without a hitch. In the next row, the guy nearest us (big, shaved stubble head) is having major second thoughts, and kind of looks away and sits down. The rest of that row are shot dead. The man* closest to the sitting guy fires and kills him.

A few more rows back, a group of friends, and notably a tall thin girl with medium-short sandy blonde hair (and maybe glasses) are awaiting their turn. To my left two guys (civilians) are sitting Indian-style facing the gunners.. they seem to not be participating. The one behind the other even seems kind of jovial. Finally, it gets down to the row with the sandy blonde girl. Suddenly, she up and says to a guy nearby, "Let's go for a walk." Apparently, the jovial guy on the sidelines hears this and for some reason thinks it's directed at him. He busts out a wide grin.

The girl and the guy she talked to, and a few others, make their way around us and to the door (front and left, from executionees' perspective). At this point I am the perspective of the man* who shot the sitting guy earlier. I really don't want to shoot the girl as she walks out the door, but I feel obliged to look like I'm trying. I fire twice, both shots landing above the doorway. They have left. A few of my colleagues slowly begin to pursue. I also go out into the hallway to try to find where they went. After I pass by a senior officer (reminds me of the principle Ferengi from Buffy) I hear their footsteps and voices but I'm not quite sure which way they are, as I find myself at an intersection of a few hallways/stairways.