Last Names

So, I'm creating my team and found something a little funny, to me at least. You can name your characters almost any name you can think of unless they are a killer in any shape or form. But you can use their last names; Little, Gacy, Bundy, Manson, so on so forth... except one, Dahmer. Now, I understand you can't use Jeffrey Dahmer, but you can't even use that last name. Not Sullivan Dahmer, Patrick Dahmer, Kevin Dahmer. I get Jeffrey Dahmer did unspeakable things but to not be allowed to use that last name to me is a bit ridiculous