You are very lucky that in your duties that you never did what this cop did, in these circumstances. If you had killed someone under these same circumstances, I would have referred you to an Article 32 investigation and then a General Court-Martial for murder.
You are delusional. Pick a federal building near you and do the same thing. Bring some friends. The outcome is the same.
This cop will be exonerated.
The kids are still out of college.
People on the internet can claim to be anything.
You are going to find people who are paid to try and justify murder against political enemies.