In a particularly egregious offense, one person was killed in a grenade attackon a United Nations-run school, which was targeted for the crime of holding a mixed gender sporting event.
One person briefed on U.S. intelligence said that reports focused on two main motives for the attack: inspiration from the violent protest that day at the U.S. embassy in Cairo, and the exhortation of al Qaeda leader Ayman al Zawahiri to avenge the death of his second in command.