Although my main suspect is Brett Partridge for many reasons i explained in my last theory I cant ignore the fact that Sherrif McAllister looks very suspicious to me.I dont know why, i dont have any proof about him being RJ but after Partridge Sherrif Thomas McAllister is my second suspect.About the others I am sure that RJ isnt Stiles,Kirkland,Smith or Bertram.About Haffner i dont know but he looks suspicious too especially for his age and his involvement with Visualise.