I think RJ has dirt on many of the suspects and they would rather turn a blind eye than lose everything. Corruption seems more likely than plain evil? They have covered for him but now that he is starting to make mistakes/lose the plot they are panicking and that is why Reede said what he did to Bertram. Possibly the same with Stiles.The one person in common, between CBI and Visualize who hasn't been in Bertram's meetings/spoke to him about it/is now dead, is Ray Haffner! However, I'd like to see something totally out of the blue - PJ's dad? Danny Ruskin? Walter Mashburn? Kristina Frye? Rosalind Harker? - I think those two women are suspicious...