Separatist guerillas on Saturday killed a local policeman in Pulwama district in South Kashmir.A senior police officer told IANS in summer capital Srinagar, "Selection grade constable Khurshid Ahmad Ganai was leaving his home in Koil village for duties when a militant appeared and shot him from a close range. The constable died on the spot."Two days back, militant hiding in a mob had launched two grenades at the mob controlling security forces injuring 15 security men, including three officers in the same district.