HANGU: Unknown gunmen killed a shepherd and his cattle in Chappar Mashti area in central part of Orakzai Agency, official sources said on Monday. The sources said that the son of Jan Mohammad was grazing his cattle in the mountainous Chappar Mashti area when unidentified gunmen opened fire on him, killing him on the spot. The assailants, the sources said, also shot dead his eight cattle head. The motive for the crime could not be ascertained