In the first three days of an amnesty after mass shootings plunged their country into shock and soul-searching, Serbians surrendered more than 6,000 unregistered weapons, 300,000 rounds of ammunition and 470 explosive devices. But in a deeply divided nation awash with lethal weaponry, where war criminals are glorified, reality shows on state TV star convicted murderers, and memories of savage recent conflicts run deep, many doubt whether the president’s pledge to “disarm” the country will be enough. Seventeen people were killed and 21 injured this month in two shootings in as many days. In Belgrade, a shooter – allegedly a...