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.
I don’t think any of the cases have been jury nullification, they keep bringing unreasonable charges and the jury doesn’t buy it.
There’s a term for that, and the term is “jury nullification”.