I didn't watch the episode. However, I watched the youtube scenes before being removed together with your comments regarding the leak.
the below question was to be answered merely by Red John is not answered as promised!!! when you are going to explain it Heller???
the very next episode is said to be two years later!!! WTF
Bruno Heller: "It wasn't my decision (to kill Partridge); it was Red John's decision," Heller told EW. "Why did he kill Partridge? What possible reason could he have for that? A very good reason will be revealed down the line," he added.
http://au.ibtimes.com/articles/513530/20131014/mentalist-season-6-red-john-rigsby-van.htm#.UpBCtsRASAQ