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.
Kenneth Walker shot police and Kenneth Walker was not only in the right, he was adjudicated on the matter and found not guilty by a jury of his peers:
https://en.wikipedia.org/wiki/Killing_of_Breonna_Taylor
Masked, warrantless federal thugs that are indistinguishable from home invaders will eventually be shot or even killed. There are reasons that the police operate the way they do, and they are usually not out of the good of their heart.