Patrick is a master mind in manipulating. He has a strange side to him that sets off red flags in me. He could be using past subjects convicted as killers by hypnotizing them  to throw people off the trail of suspecting him. he probably randomly chooses people to hypnotize and manipulate to create a murder  mystery that surprised to note he solves. and Why?  he wants to take everyone's attention off of him by joining the CBI team so that no one will see his true identity. He is smart and clever and one could easily over look him as RJ.

theory # 2 It could be that the wife of the person Jane shot was red john . She was purposely baited by Jane when he added a key to the VIC's key chain. She could have been trying to find out if her husband was secretly hiding evidence to reveal her so she took the bait from Jane trying to see what the key would unlock so she could destroy the clues or evidence that points to her.