The whole episode 5 was about Haffner. The Haffner which is still as dumb as a shoe and definitely not RJ.
Why do you all believe RJ killed the poor PI? How come she said she is working for Visualize? Only dumb Haffner was trying to hire this PI and failed like a child. Then went to cover up is dear career as private contractor. Yes, most likely if Haffner was dumb enough, which is not surprising head had his sleeves up revealing his tattoo while kill the poor woman.
I'm very disappointed about 2 previous episodes, but hey we need to go them one by one...