Myanmar
In a changing regional landscape and a resurgent Russia and more assertive China, Pakistan can ill-afford to upset China. As the US puts more pressure on Pakistan and gets closer to Pakistan's arch enemy India, the Pakistani military shall encroach further into South East Asia to counter Indian influence east of the Indus. However, military ties or fighter jet deals does not mean the Pakistani military endorses the killing. The logic is that it is simply an internal matter for Myanmar to deal with.