I saw that same thing on TV; and I think you're right.
And so why should he bargain?
I don't believe that Larry and Opri will.
Stern is just squatting and holding on to what he can for as long as he can hoping that someone is weak enough to let him have his way.
And if he did kill ANS and Daniel, he probably figures he has nothing to loose, hes either a dead man walking, a lifer, or Billy Bob's caged b_ _ch for a mighty long time.