If the library books belonged to the John Doe, it makes me wonder why LE didn't track down the library and who had taken out those books at the time.
I'm new here and have read through some of the posts.You are all doing a great job researching this case.
I thought the same thing until I remember that I lived in another state, two hours away and my dad who moved to St.Louis Mo when I was eight was always able to get us a library card (I had a St.Louis library card until I turned eighteen) even though me and my younger brother lived in another state. I now have to apply for my own card and all I need is a piece of mail with my address. In five years they have never asked to see a picture ID. I could have stolen someones address and gotten a library card.