Well it's sad to hear about her and as far as her death is concerned mostly it's said that first she was shoot but gun then the blast took place but the government says that it was the impact of the blast which shock her while her neck hit the roof top window's edge and caused her death.
Below are the pictures shown by Pakistani News Channel Dawn, where it shows that there were two assasins, one shoot her and the other blow himself.
Glancing at the camera, while the other man (thought to be the suicide bomber) who has folded himself in a scarf could be seen behind the shooter (a young boy of 20-22, guoted by Gov).
Taking the aim while Benazir still could be seen (on the right side of the picture).
Shootout