A deadly, hours-long siege of a school in northwest Pakistan ended Tuesday evening with all the Taliban militants responsible killed, at least 130 people -- most of them children -- dead and a country once again grasping for answers after a horrific attack. Six suicide bombers scaled the walls of Army Public School and Degree College in the violence-plagued city of Peshawar around 10 a.m. (midnight ET) intent on killing older students there, according to Mohammed Khurrassani, a spokesman for the Tehreek e Taliban Pakistan, or Pakistan Taliban. These Taliban had "300 to 400 people ... under their custody" at...