It is possible for a player to never find out truth about Lora Baker or Cube until you talk with Six in the epilogue.
If you don't find out how Cornell got the cube, don't get oculus and don't have good enough relations with faceless in the DC to see lora, you won't know anything about tanner involvement with lora and cube.
It is therefore weird that in epilogue when Six says 'I am looking for someone, someone who pretends to be one of your own kin but is not.', player can say 'Hadrian Tanner' despite not knowing anything suspicious about him that would lead player to suspect him.
