Here's my 2 cents worth. I can't imagine that the show's writers / producers would have any of the regular CBI crew (cho / van pelt / rigsby / lisbon / jane) be part of Red John's network. It would make rerun's in future syndication seem weird if one of those characters is helping Jane solve crimes and the viewer knows already that one of them is a criminal........I say RJ is either Partridge, Kirkland or Ardiles with no CBI regular being part of RJ's network.