I'm certainly not the first person to point this out. There is lots of speculation out there on the web. I first started noticing this trend when I started watching Forensic Files. That was some time ago. Now there is a proliferation of "murder shows" on the airwaves; so if you want to watch TV you can't avoid them. It seems like it's about 75% of the programming on my basic cable service.
What is this fascination with true crime; in particular murder? They must generate great ratings because they just keep coming. And the pretense of them being some kind of public service or somber dissection of the darker side of human nature is rapidly falling away. For instance, HLN's Sex and Murder:
I mean, what's the deal? Why do we watch them (and we do; I'm not immune)? Is it because life has gotten so treacherous lately that we can tune in a show like this and say to ourselves, "Well, at least I'm not a murderer!" or "Well, at least no one has tried to murder me!" or "Well, at least I haven't been murdered!"
Or is it because there's just that much murder going on in the world? Apparently, it's a lot easier to cross the line than you might think. Or is it? Is it because there's so much of this murder being pushed in our faces that we simply think there's more murder than there is? I mean what is war, if not simply socially sanctioned mass murder?
Another thing I've noticed watching this parade of evil deed-doers is that a lot of the men who kill have weird ears. Like serious asymmetry: