Musharaff will be the firt flash in anybody's mind related to the assasination. Second would be Sheriff. But if one can think more patiently the assasination of Benazir at this moment of the so called upcming polls would only furiate the people and win more sympathy votes to her party. And Musharaf cannot be so foolish to act likewise since he would b knowing that the incidence is going to add on a severe trouble to his already piled up ones. This could have been caused by the terrorist groups or the big don US. Some terroroist groups like Al Queda who would not have got any proper support currently from the Pakistan might have wanted to create chaos in the country and divert the security of the country to accomplish some taks. The other might have been due to unseen intervention of the US to create problems in the country to gradually bring it under its control like it had done on in Afghanistan or in Iraq. Whatever or Whoever it is only God who can save the country and its people.