KARACHI: A wall of a house collapsed on a youth, killing him on the spot in Quaidabad area of the city on Sunday. The wall of a house fell on 20-year-old Faisal, son of Munawar, in Quaidabad. As a result, he suffered severe injuries and died on the spot. His body was shifted to Karachi Civil Hospital for medico-legal formalities and later handed over to his family.