RJ is Brett Partridge.
He has unfettered access to CBI.
Serial killers are notoriously narcissistic. They always hang around after a kill to watch the drama unfold. BP is in the perfect position to watch and marvel at his work as a crime scene technician.
His continual arguing with PJ at crime scenes is just another way BP (RJ) toys with PJ.
I also suspect PJ is on to him as well by the way PJ dismissed him during the most recent episode. It was almost as if he was telegraphing, "I'm know it's you, I just don't definitive data yet."
Here's what I can't get my arms wrapped around though: Why are all of RJ's accomplices willing to die for him? PJ has said he gives them something they want, but then they are either killed by RJ or commit suicide. What does he promise them that they are willing to sacrifice it all for him?
