I think you got my point backwards. If you are found with a gunshot wound in your head, holding a gun, but you don't have gunpowder residue on your hand, it's pretty safe to say you didn't shoot yourself.
Of course there are ways to get around that but the killer has to actually perform that workaround.
I got your point, but I was making that point that even then, it doesn’t mean anything. Maybe they went to a shooting range that afternoon. Maybe the killer does something to ensure the residue is there. Maybe the killer manipulates them in their sleep. Who knows.
No you still don't seem to get the point. I'm saying the *absence* of gunpowder residue means something, I'm not saying the presence of it means anything.
withinboredom seems to be making the similar but tangential point that, in the same way that absence of gunpowder is evidence [of something] while presence of gunpowder isn't evidence of anything, it's possible to demonstrate that a death was not by suicide, but it isn't possible to demonstrate that a death was by suicide. Same idea, but reversing "which part of the sentence is the variable".
I'm not "keeping explaining." I made a counter-point, and you redirected me to your point; I acknowledged that I got your point and explained I was making a counter-point, and you reiterated your point. I upvoted your final reiteration to ack that the conversation was over.
Of course there are ways to get around that but the killer has to actually perform that workaround.