The fact that cutting only his tongue and not kill him is consistent
with Red John.Just like in Patrick's case where Red john wanted him to
suffer more, he didn't kill Patrick, but his family and continued
torturing Patrick for the last 10 years.I am saying if it was Red John
would make sense because he clearly wanted him to suffer more.If you
die, you die, but living without your tongue is a different kind of
matter.Of course, it doesn't make sense for Red John to do this, the
deed was obviously LaRoche's and the only way it can be connected with
RJ is if LaRoche is RJ, which I doubt, but anything can be possible.Maybe RJ really is LaRoche and he's pretending to play with Patrick some more.