WATERLOO, Iowa (AP) — A teenager in Waterloo has died after showing up at a hospital with a gunshot wound Police were called to a neighborhood Monday night where residents reported hearing gunshots and seeing someone on the ground in an alley. The Waterloo-Cedar Falls Courier reports that officers didn’t find anyone but a short time later a 15-year-old showed up at a Waterloo hospital. The teen later died. Police found numerous spent shell casings in the alley and say at least one home was hit by a bullet.