A Pakistani girl lights candles for the victims of school attack in northwest Pakistan's Peshawar on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar, said a spokesman of the Pakistani army. (Xinhua/Umar Qayyum)

Pakistani civil society members light candles for the victims of school attack in northwest Pakistan's Peshawar on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar, said a spokesman of the Pakistani army. (Xinhua/Umar Qayyum)

A Pakistani girl holds a candle for the victims of school attack in eastern Pakistan's Lahore on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar. (Xinhua/Jamil Ahmed)

Pakistani civil society members hold candles for the victims of school attack in eastern Pakistan's Lahore on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar. (Xinhua/Jamil Ahmed)

Pakistani civil society members light candles for the victims of school attack in eastern Pakistan's Lahore on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar. (Xinhua/Jamil Ahmed)

Pakistani civil society members light candles for the victims of school attack in eastern Pakistan's Lahore on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar. (Xinhua/Jamil Ahmed)

Pakistani children hold candles for the victims of school attack in eastern Pakistan's Lahore on Dec. 17, 2014. At least 141 people including 132 children were killed and 133 others injured on Tuesday in a terrorist attack at the army-run public school at the Pakistan's northwestern provincial capital of Peshawar. (Xinhua/Jamil Ahmed)