If you guys would like to watch a story line about a serial killer I would suggest watching the episodes based around this one:
http://criminalminds.wikia.com/wiki/George_Foyet
The story was completely chilling.
http://www.youtube.com/watch?v=GLKo_IQLl_o
Do you think the smiley face is a password like tiger tiger is?
http://static.sorozatjunkie.hu/wp-content/uploads/2013/10/The-Mentalist-02.jpg
He is many
IMDB lists Walter as Red John!
http://www.imdb.com/title/tt3196216/
Currie Graham...Walter Mashburn / Red John
I was thinking that perhaps Red John is no one that we suspect. That in reality he didn't really kill anyone. That he uses or manipulates people into killing for him. This leaves a huge door open when he is caught, because they can't actually pin any of the murders on him. Then also, I was thinking that in the end of the season it would probably be very interesting if Red John kidnapped Agent Lisbon.