Okay so I forgot to mention something. 

 I think Red John is Bertram. He makes the most sense a part from Stiles. He has the power and influence thing is this...................................................


The Spoilers:

THE PARK WHERE RED JOHN REVEALS HIMSELF. I'M CONFUSED? IF PJ KNOWS WHO RED JOHN IS WHY DOES HE REVEAL HIMSELF. IT SOUNDS LIKE HE IS SOMEONE UNEXPECTED. HOW DID THEY GET TO THE PARK. WHY IS RED JOHN IN THE PARK? AND IF HE WERE ONE OF THE 5 THEN WHY IS HE REVEALING HIMSELF. THE ONLY THING I CAN THINK OF IS IF BERTRAM MAKES OUT THAT HE IS UNDERCOVER IN THE TT GROUP AND GETS AWAY WITH IT. HE WAS WITH BOB KIRKLAND SO MAYBE RED JOHN IS PLAYING A TRIPLE AGENT HERE AND HE GETS AWAY WITH IT. THEN HE COULD COME OUT WHEN JANE AND HIM ARE ALONE? I DON'T KNOW IT'S SEEMS ODD TO ME, THE WORDING.