Originally Posted by
Red Fel
But here's another wrinkle. A lot of those rules go out the window when dealing with inherently Evil beings, such as Outsiders. Straight-up murder of them, by some sources, is considered a Good act. Having the (Evil) subtype, again according to some sources, grants others carte blanche to do basically whatever the crap they want to you. This seems, and is, somewhat contradictory, in that one would think that it's the actions, and not the targets, that define the alignment result, but that's logic, and this is RAW.
So, long story short? It depends.