There should not be any surprise as Pakhtun traditions of badla is result of brainwashing Pakhtuns over centuries, but then, present brainwashing is as strong and Zombies doing suicide bombing are also brainwashed. ....
Yeap. Brainwashing and false propaganda has brought the region where it is right now.
......Confusion on how these people can do such things is due to people considering and calling them Islamists.
If we call them what they are, all confusion would disappear. The true nature of these people is that they are not Islamists but Iblisis (shaitanic) and all what they do, any Iblisi could do without remorse or qualms.
I see what you are saying. Yes they do satanic work in the name of Islam. They carry Quran in their pocket, and a bomb under their vest. May be they are Islamic satanists.