Red John vs Tiger Tiger law enforcement Group (three dots mark).

My theory is that the Tiger Tiger group is an secret unofficial law enforcement group, key members have the three dots shoulder tattoo. They are enemies on Red John, and I'm pretty sure PJ's alter ego is Red John, with Stiles and his cult involved somehow and maybe even Van Pelt.

Red John is trying too find and kill key members of the Tiger Tiger group, while the are trying to find Red John.
'Nice'Patrick Jane is so far an asset for both tiger tiger group and Red John AKA evil Patrick Jane alike.

All clues and behavior of all characters seems to build up that Red john is not leader of Tiger Tiger group but there adversary,

Question: have we seen both Rigsby and Cho without there shirt on? Can it be confirmed that they do not have the three mark tattoo. If Rigsby had it Van Pelt would know, but what about Cho?