Well it depends. Because coding that would be hard, not to mention there would have to be new ai that can occasionally make kills when nobody is around but at the same time cant be a perfect murderer. You would need ai to decide when to vent and to kill if they vented in front of someone or if they have some kind of cool down they might need to call sabotages, all though that would be insanely complex to create. And depending on the cooldown that is set for the game would it be the same for the ai? so they just kill no matter whenever somebody walks near them?
Its a idea that has been suggested before but it would be really hard