tripoli twenty eight body bullet wound torture mark discover saturday area west libya capital recently see clash rival arm factions local human right group say ahmad hamza libya national commission human right nchr say victims fighters oppose government-aligned coalition force arrest kill locals find body near road town alhira 60 kilometers 37 miles southwest capital tripoli hamza say sunday town wershafana area fight break last week coalition force nominally align internationally recognize government tripoli launch campaign rival arm group include loyalists former libyan leader muammar gaddafi victims families allow receive body reason know hamza say accord fact-finding monitor documentation section nchr sign torture victims shoot chest head say wershafana region largely cut capital several years become notorious violence criminal activity military council zintan town southwest tripoli participate campaign rival arm group say aim deal murder kidnap act barbarism region immediate comment zintan military council body discover recent fight displace 480 families although around 100 since return home accord local authorities libya turmoil since gaddafi oust nato-backed uprise 2011 loose arm alliances rival governments vie power nearly 30 body find clash near libyan capital activists