One more thing really bugged me which I was reminded of looking elsewhere at discussion of RJ - THE SECRET CODE/LIST from the flashdrive??? In Bertram's storage locker. With presumably expensive bottles of wine and crates full of cash. The wine and cash seem standard fare for a secret storage locker space, but they never even mentioned the CBI looking into the coded list, and that was our last big standout clue if I recall correctly. Maybe it's just Bertram's off-shore account numbers in hidden format…but this seems drastically secretive for someone who already has a super secret space to hide things. 

Also, Grace would have been the natural person to crack codes given her supposed whiz bang computer hacking skills, but she deferred to Jane in her passing remark - why?