The article doesn't say. It might be the fault of some editor. The email address of the author of the story is:
There is a little more information here (maybe):http://crimeblog.dallasnews.com/2013/02/...-children.html/
words don’t exist that are bad enough to describe Turner.
He is he worst of the worst and that is an understatement, He redefines words that we use to talk about bad people.
We call bad people monsters, That’s not scary enough for him. We call bad people nightmares, that’s not dark enough for him.