If you want to write something completely unique, you will probably fail or at best write something without redeeming value. The mind works in certain patterns: the mind organizes facts in story form; it is your commonality with that body of human thought that makes a good book, not its estrangement from the common values that humans share.
I think either Robert Blake wither pulled the trigger or hired someone to do it, but it will be a tough case to prove. I think there's a very good chance he may take the stand, and that's what I'm waiting for.