Yeah, but even if it was proven beyond a reasonable doubt what's the likelihood they would get anything more than a slap on the wrist when they state it was to "defend your freedom"?
I doubt they'd get a slap on the wrist. Maybe a sticky note saying "don't do that again, mmmkay?" Take a look at 20 years of FBI shootings without a single unjustified shooting: http://rt.com/usa/fbi-justified-every-shooting-report-035/