Agencies in Belgrade Friday June 3, 2005 The Guardian They are the images that have finally, 10 years later, shocked a nation. A man, several men, are unloaded from a truck, marched to a wooded hillside and shot, one by one, in the back. Two prisoners are ordered to carry the bodies to a barn. They too are then executed. The murder of thousands of Bosnian Muslims from Srebrenica in the summer of 1995 is well documented. But a video that emerged this week during the trial of the former Serbian president, Slobodan Milosevic, has provoked a bout of soul-searching...