A policeman investigates near a pistol that was used to kill six poeple in the village of Trstje near Tuzla May 29, 2008. A Bosnian Croat man shot and killed six of his relatives in a village near the northern Bosnian town of Tuzla on Thursday, gunning down three in their homes and three aboard a bus, police said. REUTERS/Damir Sagolj (BOSNIA AND HERZEGOVINA)