[...] as the dead bodies — mostly children — started coming in from a school massacre this week that killed 148 people, he began to weep. Muhammad spoke during a break from the digging, as he drank green tea with one of his colleagues and his two sons who work with him in the Rahman Baba graveyard, named after a beloved Sufi poet, in the northwestern city of Peshawar. Wearing a faded shalwar kameez, a traditional dress of baggy pants and a long tunic, the 43-year-old Muhammad was covered in dust from a freshly dug grave. The militants, wearing suicide vests, climbed over the fence into a military-run school, burst into an auditorium filled with students and opened fire. The bloodshed went on for several hours until security forces finally were able to kill the attackers.