Look at this frame from the extended promo of next episode
http://i.imgur.com/YUpV0wt.jpg
It appear as if McAllister suddenly caught PJ's attention while staying calm.
the promo is here : http://www.spoilertv.com/2013/10/the-mentalist-episode-606-fire-and_4337.html
How do you find this theory?
plausible
unlikely