After looking around for what I could find on this, I still don't know any more about his role than I did back in April when the story first came out. His vehicle is the one that was used by his mother. Now if she just said "son, I need to borrow your car" that is one thing. If she said somethig like "son, I want to borrow your car so I can snatch a kid" that is something else entirely.
There was speculation even before the arrest that he would transfer to East Miss. JC.