He said the two suspects told police they picked up the bomber a day before the attack at a bus depot in Rawalpindi, and the bomber stayed overnight with Rafaqat before they took him to the Rawalpindi park hours before the attack to do reconnaissance.

CNN: Two admit arming Bhutto suicide bomber

The two suspects told police they picked up the bomber a day before the attack at a bus depot in Rawalpindi, and the bomber stayed overnight with one of the suspects, according to Majeed.

CNN: Investigator details Taliban chief's alleged role in Bhutto's death

The police chief in Paktia province, where the attack happened, said the bomber detonated his explosives around midday.

BBC: Afghan children die as suicide bomber targets soldiers

The Malian army has been fighting Islamist rebels in the northern city of Timbuktu after a suicide bomber attempted to attack an army checkpoint.

BBC: Timbuktu clashes between Mali army and Islamists

Police initially said they ramped up security around Bhutto due to intelligence that a suicide bomber was planning to attack her in Lahore.

NPR: Bhutto: Pakistan Power Sharing Now Not Likely

On the day of the attack, McHugh was on foot, about 25 to 30 feet away from the bomber.

CNN: Pressing on at war when 'good men' die

Senior international security experts have suggested, for example, that such an approach would have increased the chances that suspected shoe-bomber Richard Reid would have been stopped before he successfully boarded an airplane he intended to attack in December 2001.

CNN: Why profiling doesn't work