Overall the episode was nice. But the plot was a lot thicker than usual, I think with Volker in the picture they can go many ways from here and I hope they will develop a good story. Besides the suspicion of Bob being Red John, did anyone noticed that he is the same guy that was in the limo with that FBI 'director' in Red Dawn? If he's not Red John himself, he at least is related to him in someway.
There's one thing that bothered me about the storyline: the assistent didn't get protection straight away. Volker, powerful as he was depicted, would certainly have kept an eye on her and would have known what was going on. I knew she would get killed the moment Lisbon stepped in her apartment.