A masked guy breaks down your door w/o an Article III warrant absent exigent circumstances? Yeah, I’d agree. Trick will be that pressing the murder charge would be federal since a federal agent dies in the line of official work (though illegal), which would give the president grounds to push for death.
Given how these days, simply ringing a doorbell (usually a geezer) s enough to get you shot to death, I am surprised it’s not happened yet.