So! i have literally been obsessing over who red john is for the last 2 weeks, for some reason the 7 suspects make no sense to me at all even after reading tons and tons of very logical and convincing theories. One thing i have hung on to is that bruno heller descriped red john as a wheres waldo character...i interpret this as someone who is always around but never noticed straight away, Then my attention was brought to CBI RON!!! so i searched for all the episodes he was credited in... i watched them hes a little creepy gives funny looks to main suspects but what has got me is that i searched the mentalist best episodes rating by viewers and this took me to season 1 episode 16- Bloodshot (patrick jane goes blind after a bomb explosion - van pelt is dating the enemy again! and there is scene near the end of the episode where the enemy/bomber is chasing van pelt and jane through the parking lot and a car is seen to be pulling out and who is in it CBI RON and they look at each other and he drives away - he isnt credited at all in this episode on anything imdb, wiki but he is in that car clear as day. he is first credited in season 2 and half way through it. 
now i know we are supposed to trust he list and rosaline harkers description but it all contradictory the list doesn't fit the her description  there is so much evidence that doesnt fit and maybe that is on purpose not all evidence is relevant.  only one thing for me fits CBI RON - WALDO!!!