Anything with "mor" in it sounds morbid. I think there's some kind of root somewhere that means death or something.
And then there's Voldemort I guess. Ooh, what a perfect villain name! (Sorry, I'm still OMGHP.)
It's a neat name nevertheless. I strongly dislike it because I am really, really grossed out by "
Kai" and "
Cai," but I'd be quite glad to meet one if he didn't go by either of those. And for some reason it seems really Jewish to me.