Quite the contrary. Many famous serial killers have demonstrated a psychopathic level of narcissism in vivid public ways:
Ted Bundy
John Gacy
Richard Ramirez
Bobby Joe Long
Randy Kraft
Christopher Wilder
Rodney Alcala
most recently, Drew Peterson
Sometimes it takes the form of game-playing with authorities, as in BTK killer Dennis Rader, or Green River killer Gary Ridgway, or the never-solved Zodiac Killer in the San Francisco area. Or the first such, Jack the Ripper.
Just as often, it's a purely private narcissistic enjoyment, the need to demonstrate that you are more important, better than these other objects known as people. That you are special.
caw
Definitely narcissism is a component of the psychopathy. But still, there are lots of narcissists who would never dream of killing anyone. They're just really tiring to talk to.
I guess the part of the narcissism that doesn't add up in the OP case for me is that he didn't
want anyone to know. Not only did he not want anyone to know what he did, but he didn't want to express his
justification for doing it...which is a significant aspect of narcissistic behavior.
I'm getting a faint whiff of sarcasm...
He can believe he's awesome and still be aware that the public, the authorities and the world in general would not see him as such because 'they wouldn't understand', and so be unwilling to bear the consequences, right? Wouldn't that still square with narcissism?
I suppose that could be true, but say, in the case of Ted Bundy, he did interview after interview about himself, how HE felt about his murders, what was going on with HIS life... blah blah blah... it was amazingly about HIM, and justification for what he did, how he felt, ad nauseum. And he was perfectly willing, practically eager, to talk about it to the public.
That's the difference in my mind, but it's certainly not black and white.