Hey there Mentalist fans!
 I have a theory,not a good one.First of all none of the guys on the list is Rd John!Heller said that when we find who Red John is we will be dissapointed.Exactly!If one of the guys in the list is Red John we won't be dissapointed becuse we guessed that it was one of them.But if it's not we will be dissapointed because we didn't expect it.Be patient though!Heller said that Red John's identity won't be reveiled for another 2 seasons(said that on season 5...).
One last thing is about the voice of Red John.He could use a voice filter when in copy cats,so he can be anyone...oh,and Patrick Jane can't be Red John I think.In the finale of season 5 people think that Patrick killed the woman.So in the others episodes?Think about it.And the fact that it was hard to wake up is wrong.Everybody wakes up difficult when others wake him up.

 Tanks for your time