It is obvious that we are looking at someone who has at least one, if not several personality disorders, but it appears that at some point he suffered a psychotic break that led to him becoming first a cat killer and finally a murderer. I am sure all of us at some point has come across a narcissist or two, even sociopaths, but we can agree these people seem to blend in with society without becoming more than, at worst, petty criminals. Something happened to Luka, probably back around the time he changed his name, and I am curious to know what it might be. I know the anger is high right now, but don't come down on me when I say I don't want to see him killed in prison. I don't want to see him dead at all because I think he is worthy of intense study so that in the future we can stop people like him before the worst happens.
As for him defending himself, we all saw how well that worked for Ted Bundy. I say, go for it Luka!