Osama Bin Laden Killed in Pakistan

Osama bin Laden, the world's most wanted terrorist is finally dead and his body has been rocovered by US authorities near Abottabad Pakistan.
This is confirmed by president Barack Obama in his speech.
During the operation, one helicopter was also shot down. There are news of this operation that 3 men killed and 2 women injured (now arrested) in this operation.
The Al-Qaeda leader was killed in a ground operation in a mansion outside Islamabad in an operation based on US intelligence. This is still to be confirmed that was it only operation of US agencies or was it done by the help of Pakistani agencies too?
Osama remained as a big terror for whole world specially for USA since 9/11 attacks in which nearly 3500 peple died.
Al-Qaeda took responisbilty of this attack and Osama always felt pride and never denied.
He had been a big target for search operations in Afghanistan and in Pakistan. It was allegation of US intelligence since many years that there could be possibilities of his presence in Pakistan. Which was always strongly denied by Pakistani military agencies, however, his presence and killing near the capital has rose many questions and now it is the matter of thought that how he was living in Pakistan and how Pakistani intelligence agencies were unaware of his presence, and if no, then why the operation was held by US agencies and not by Pakistani agencies.

Now the question is this, that what would be the reaction of Alqaeda after this big blow, as Aiman Ul Zawahiri is still hiding, and he is the one who is incharge of whole operational activities of Alqaeda in world wide terror attack.

This is big political success for Obama just before elections as his complete focus on recent operation to vanquish the main regime of Alqaeda. However, it can be a big security threat for the law and order condition in Pakistan, which has always been under threat of Al-Qaeda.

Moreever, it is being doubted by a Pakistani Journalist Hamid Mir and he is reluctantly denying that the news could not be true or authentic. He is claiming about the resembleness of Bin Laden's sons with him. And there has been a new statement by Pakistan tehreek taliaban about denial of his death.
Now question has arised that how can be US Authorities so confident that even Obama announced it.?

Note : This article was written immediately after the news was released.