First of all, I dont think that lisbon is red john I just got some suspicious information about her :

" tiger tiger " is a code for the members of that powerful organization, but some members said that to Patrick Jane before they died, maybe to give him a hint (payback to RJ for killing them).
But why would they say that to teresa?! ( patridge 06x01) , maybe she is a member too...? she is in law inforcement too and she also had a big family problem (alcoholic father, could be a reason for Rj to manupilate her...)
when sam bosco was dying, he firtstly told Patrick Jane to kill RJ when he gets him and after that bosco wanted Patrick Jane to come closer and whispered to him something ( we didnt get either) .- why did he whisper? there was no one except lisbon. and when lisbon asked Patrick Jane about what bosco told him, Patrick Jane said that bosco loves her. bosco already told her that before, why would he do that? maybe he knew something about her or the organization...?
she asked Jane exaggerately for the list of suspects ( i know everyone cared but she really got on my nerves ).
RJ knows about the real list of the suspects but from whom did he get it
from? - at first i thought it was kirkland but obviously he wasnt.., so
who else left ? LISBON ! teresa is the only person who knew about the
list except Patrick Jane.