I have a theory where DJ might've possibly killed Russo? We haven't seemed to have come across Russo for the past two days. I think it's a bit suspicious about how DJ talks about what seems to be "Russo's Handwriting"? On the wall, I don't think it could've been possible IF DJ killed him. I think where it leads me to believe is someone must've shapeshifted to DJ to get him framed for the possible murder? The "DON'T TRUST RUSSO" on the wall, maybe they wanted to hide the evidence of the POSSIBLE murder?
I'm not sure, but it leads me to believe that the drum bot boss got one of his minions to shapeshift as DJ? Or they possibly could've kidnapped Russo. The knife doesn't seem to have any blood on it, maybe the shapeshifter could've possibly washed off the evidence? Again I'm completely not sure, this is just a theory I had in mind.