Kirkland and Jane are brothers. When Kirkland is getting ready to torture the pedophile with a blow torch he was rolling his fingers (like with Pakinsons disease) just as Jane was when he was later tied up by Kirkland. They are half brothers, brothers from another mother! It is not coincidence that they both do this as the camera shot and set up appear intentional. Red John is their father. He stole the people that mattered most from each of them.
