Couple things I have seen regarding Kirkland.  When looking at the trailer for S6E4, you see that Jane is bound to the chair using zip ties.  In S6E1, when Partridge falls out of the closet he is also bound with zip ties.  Also, we see reference in the trailer for the upcoming episode in which Kirkland looks to be cutting off a finger of PJ.  In a previous episode, RJ ordered Lorelei to cut-off Jane's fingers.  I also imagine that if we look closely at the table of tools Kirkland selects in the Red Listed episode, one might find the tool RJ was cleaning off in S6E1.