Comment: I Agree

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In reply to comment: Excellent question... (see in situ)

I Agree

In an attack by a crazed, lone gunman, I believe you are exactly right, the odds are good that there would be wounded survivors.

In a concerted, determined attack bent on murder, survival odds would decline significantly.

Survivors would either have a specific purpose, witness, or be a mistake.

Which was this, really?

Just open the box and see