> A cop killing an innocent civilian at a nonviolent traffic stop can pretty much happen only because of malice or negligence.
This was found to be by recklessness, which is beyond negligence but short of malice.
> We use the word "accident", but it's never really an accident.
Acts due to negligence, and even recklessness, really are accidents.
> Furthermore, the nurse is in a profession where people die all the time due to reasons beyond the nurse's control, and surviving relatives are not always rational in who they blame.
Surviving relatives don't make prosecutorial decisions, nor are they triers of fact in criminal cases.
> So nurses will be falsely accused much more often than police.
That...doesn't follow from what you’ve described, even taking everything preceding it as true.