Why has the presence of a gunman become the cause of such bitter dispute?
The PPP says the presence of a gunman would suggest that al-Qaida was not behind the attack, pointing to the terrorist network’s frequent use of lone suicide bombers. Others say al-Qaida may have also dispatched a gunman after two suicide bombers operating without a gunman failed to kill Bhutto in a double attack last October in which at least 139 people died.
