If he sold this anonymously on e-bay, do you think his painting would generate this much discourse?
I am of the opinion that much of the discourse revolves around him using his global name recognition to sell something. Global name recognition which came from killing a teenager.
He seems to be embracing his infamy, and trying to profit from it. And some people have a moral problem with that.
God forbid that I ever kill a teenager. But if I did, in self-defense or by accident, I would likely spend much of the rest of my life hanging low and avoid reminding the world of what I’d done.