If you watch the newest episodes one thing becomes clear: the list of 7 suspects does not contain Red John. All 7 suspects are loyal to Red John and are pressuring Jane one by one so that he becomes more paranoid, just as Red John wants. Therefore, he is able to keep tabs on Jane's actions and reactions through these suspects and it is why he knew that Jane would end up with those 7 names because he planned it.I also believe that we have not yet met Red John; he is someone that Jane does know but we do not. It is possible that Red John is in fact someone from Jane's earlier years and thus we don't know that person yet.Finally, I think that all of Red John's previous victims were just ways for him to gain the interest of the police and hire Jane. I think that Red John was targeting Jane all along and simply using victims to gain fame and be known; therefore, once he had Jane's interest he began to toy with him and play him.