You need solid evidence to prove that someone committed a crime, otherwise you can't bring anyone to justice! This is how democracy and its foundation work, innocent until proven guilty!
You can't just accuse someone of being guilty because you feel they are, court systems don't work on emotions or feelings!
The Americans had a better chance of bringing Osama to justice had they accepted the Taliban's deal to hand over Osama to a third country where he could have been given a fair trial because the American didn't trust the Taliban's religious court systems!
the TTP came into existence after Pakistan army began to launch operations in the Waziristan on the behest of the Americans who kept pressuring Pakistan's gov of that time, Americans were threatening to launch their own spec ops operations into Pakistani territory if our army didn't do it first therefore we were forced to kill our own people, that operation was a complete failure on our part as we failed to achieve any of our objectives, lost a lot of our soldiers and Taliban gained more strength!
BTW, TTP's founder Abdullah Mehsud was a Taliban fighter captured by the American during the first days of the invasion of Afghanistan, he was sent to Guantanamo bay and stayed there for three years until he was released for an unknown reason and sent back to Pakistan's tribal region with a large amount of money and weapons where he began to launch series of deadly attacks against the Pakistani government and armed forces.
