145 families have lost precious members after six gunmen walked from classroom to classroom in a school killing-spree. It’s Pakistani Taliban’s deadliest attack to date. They shot at random until army commandos arrived at the scene. ‘My son was in uniform in the morning - he is in a casket now,’ said Tahir Ali, who lost his 14-year-old son. ‘My son was my dream. My dream has been killed.’ Local hospitals are treating dozens of the injured. 136 children and nine staff have died. Mourners staged candlelit vigils overnight. Pakistani Nobel Prize winner Malala Yousafzai said, ‘I, along with millions of others around the world, mourn these children, but we will never be defeated.’ A Taliban spokesman said the attack was revenge for Taliban members being killed by Pakistani authorities. His organization, Tehreek-e-Taliban, is a military group working to overthrow the Pakistani government.