Language of Evil by Robert Beattie

I usually always enjoy reading True Crime novels.(This is a true crime about a college professor, that killed his wife). But with the book Language of Evil by Robert Beattie, I was left unsatisfied. Almost the entire book was set in Interview Room # 2 in a small town police station in Kansas, this book had few characters, and no mystery. I found the book interesting, yet lacking. I was hoping for so much more then what I received from this book.