SaintGirl, the book by Mara Leveritt came out a while back, and the movie took its name from that book. However, I believe Devil's Knot does not refer to the shoelace knot and the hair found in it, but to the fact that everyone was so tied up in a "Satanic Panic" at the time of the trials. Tied up in the fear of the Devil and his "worshippers" there was a Devil's Knot firmly in place in law enforcement and the courts when the three teenagers were tried. (Sorry if I tread on anyone's toes, especially Compassionate Reader.) But then, I'm a newcomer to the forum as well, so don't take my opinion of it as gospel... it's just my own take on it!
FWIW, GK, I think you're right!
Thanks to you, both. Like your avatar GK. There's a GK on the forum I'm usually on with the same one. Grassy Knoll.
Anyone want to hop over to the Christina Morris thread, we could use the help.