Would be surprised they would run uniforms through that, and especially something like a SRO. Which seems like choice duty, for a cop. And in any case, military training fails, and a soldier is meant for violence far above a mere cop.
Could be 17 dead, or 1, it's asinine to want the cop to be executed. Overemotional response. Wonder how many he could have saved, anyway, by the time he hears gunfire people are already dead. Academic, anyway.