I don't why Pakistani Foreign Affairs ministry even bothers with Afghan government assertions - what it should be focusing on is the international media - to make the case that what passes for "evidence" in Afghanistan neither stands up to the standards of evidence in civilized countries and instead raises suspicions of complicity of Afghan authorities and others who were involved in bringing Mr. Rabbani back to kabul from Sharjah.
If you have any kind of experience, for instance even if you think about your Masters and Phd dissertations, your advisers always tell you to think about KIS - Keep it simple
When Police for instance come investigate a homicide in a home, the suspects are generally those who reside in the home, right? But in Afghanistan, the most convoluted of theories are concocted, that US with her intelligence operatives all over the larger cities of Afghanistan similarly refuse to Keep it Simple, suggests a motivation that brings shame on them and ultimately robs them of credibility.