This is the one bit that I am struggling with.
You keep speaking like you are in some position of power with leverage as you play with smoke and mirrors and act like you are not the one on trial here. You very simply are. And if you had a reason to play games and hide information that damns Rex or someone else you could do that.
I do not trust you and the situation has everything to do with you. Rex is not on trial imo. You are. And I very much doubt there is not a scum between You/Rex/Shining regardless but the way you are handling the situation looks very scummy to me.