In this forensic update, we sit down with our ballistics expert to go over the results of recent gel dummy tests designed to replicate the scene of Kurt Cobain’s death.   What happens when you fire a 20-gauge shotgun into a ballistic gel torso at close range? What should the blood pattern look like? And why does the scene in Seattle not match the science?   We’re separating fact from fantasy — one shell casing at a time.