Brett partridge is Red John, each one of the 7 suspects all have clues pointing to why they could be red john, i think the death of "Brett Partridge" is just to make us take our eyes of the prize, i think out of the 7 there are more clues pointing to him then any of the other 6 suspects. also the Pigeons seem to be some sort of clue as somebody mentioned, both In episode 1 and 2 of season 6 also a partridge is a bird. perhaps thats the clue?. just my thoughts my money is on partridge if not the only other person i could see being red john would be ray heffner. ps leave your comment on my site if you want to discuss theorys on fastwap.net look foward to episode 3