I have been looking through some old clips of The Mentalist.

Take a look at this http://www.youtube.com/watch?v=L5-H9QGov4Y (Grey suit and beard)

And this http://www.youtube.com/watch?v=kxqpy8H35os Grey suit and Beard)

And this http://www.youtube.com/watch?v=eMFbgTz50EM (Dark suit and no bears - Bob kills him because he wants to find out who Red John is not Patrick?)

... seems strange how one minute he has a beard and grey suit... next minute he has no beard and dark suit... also look at the different facial expressions and body language... 

Lastly... http://www.youtube.com/watch?v=q-BoNg3vmXo