Bob Kirkland asked Jason Lannon if he recognizes him because he wanted to know if he saw his twin brother,but he didn't recognized him and killed him because Patrick could get infromations about RJ from Jason ,important informations ,in a way that Bob can't.That's why he killed him.
And i think that Lisbon is a part of Tyger Tyger,that's why BP said "Tyger Tyger" to Lisbon in 6x1.
I think RJ has nothing to do with tyger tyger organization,or is just a member but others don't know.I think that Ron is RJ,I hope so,I can't wait for episode 7.
Sorry for my english if a made a mistake