Example. If i get arresting privelages and my friend and i go to a planet with 1 population i land and arrest and kill that person and leave. would my friend own the planet if he lands since there is 0 pop?
Look good, Dodge fast,Shoot first,kill quick, and you live.
but it is not what we know that gets us through life it is what we think we know.
Population is based on the number of flats on a planet, not on the number of players, NPCs, droids, etc. on the planet. So whoever controlled the planet before still controls it, no matter how many people you kill there.