Its incredible how Jeremy's 'confession' to Julie happened to be many of AEs and RBs opinions and theories. Opinions and theories that don't even match the facts of the crime!
I guess Jeremy must have used his crystal ball to read his relatives minds then 'confess' to Julie all of those theories just so it would seem to everyone that RB and Julie were setting him up! 
My 14 points Julie said, are nothing to do with AE or RB.
You said each point was already public knowledge. Although there is no evidence the media wrote these things the day after the massacre.
The police would have to say these things to the media. Then the media decide to publish every fact. Then Julie read and remember it all.
Perhaps Jeremy did tell her ? Just a thought.