I get a feeling that all along someone in Tyger has been trying to take down Red John. The idea that red john began only killing girls for the most part is what they wanted to follow through. I believe red john did kill all at the barn, but moved on to only women, to teach them lessons. I think that the person who killed Jane's family is within Tyger, and wanted to get rid of Red John, or frame him. They knew that Jane would go after him like a hound, and so he was framed. The only ruthless one I can think of is Bertram. I believe that Bertram contacted Haffner or killed Janes family himself. Partridge knows this and has been trying VERY hard to gain Patricks trust. Think the situation with Betram and Timothy Carter; he knew what to tell him, etc. I think Jane knows Partridge is not his family's killed, but to make sure people understand the seriousness of catching Bertram, accuses Bertram. The way Partridge acts and such suggests e is god of Jane, but not enough to murder his family, even if he is prideful. He would not murder innocent children since he admires Jane so much. The fact Partridge not says Tyger Tyger before his death suggests he is still playing this "game" with the CBI, not willing to give up the killer to Jane so easily. The fact partridge stop plays this "game" tells me he is Red john. He could have given a name directly, or at least something more feasible. I think Jane is searching for Red John, but knows his family's killer is not the actual Red
john, but has became janes red john. Also, have you noticed the way van pelt was acting especially towards rigsby about the Tyger conspiracy?