An assault rifle tied to at least seven unsolved murders has been discovered on public display at the British Imperial War Museum in London, reports the BBC. British investigators re-examining a plethora of paramilitary murders committed in Northern Ireland tracked down the VZ58 rifle to an exhibition at the museum dedicated to the period of ethno-nationalist conflict in the region, commonly referred to as “The Troubles.” A forensic examination conducted nearly two decades ago proved that the rifle was one of two weapons used in an attack on a Belfast betting shop in 1992.