This episode is one of the two episodes (in this series) directed by Simon Baker.
Unlike usual, it deliberately revealed the serial killer in the half way.
It also showed some offstage works of Jane, so we can see that his work is not
as easy as on the surface. E.g. he was shown preparing his expressions
and body languagein order to set up Karen Cross, the reporter who has sharp eyes.
It is good as a "once in the blue moon" episodes.
BTW, it looked like that Jane used Panzer to test Red John ?