A 2007 Benazir Bhutto interview in which she says the al-Qaeda leader was 'murdered' years ago contributes to the uncertainty surrounding US claims about Osama bin Laden's death.
On Monday, US President Barack Obama announced that the al-Qaeda leader was killed by US forces after he was found hiding in a compound in Pakistan.
This is while in an interview following a failed assassination attempt on Pakistan's former premier in October 2007, Bhutto says bin Laden has already been killed.
In the interview, she identifies the man who killed the notorious al-Qaeda leader as one Omar Sheikh , excerpts of which was sent to Press TV's UReport.
In response to a question whether any of the assassins had links with the government, Bhutto said, "Yes but one of them is a very key figure in security, he is a former military officer … and had dealings with Omar Sheikh, the man who murdered Osama bin Laden."
Bhutto was assassinated on December 27, 2007 in a bomb attack as she was leaving an election rally in Rawalpindi when a gunman shot her in the neck and set off a bomb.
The announcement of bin Laden's death comes almost ten years after the September 11 attacks on the United States.
Meanwhile, a US official says bin Laden's body has been buried at sea, alleging that his hasty burial was in accordance with Islamic law, which requires burial within 24 hours of death.
This is while burial at sea is not an Islamic practice and Islam does not determine a timeframe for burial.
The official added that finding a country willing to accept the remains of the world's most wanted man was difficult, so the US decided to bury him at sea.