CINCINNATI (AP) — A gunman carrying enough ammunition to cause "a bloodbath beyond imagination" killed three people and wounded two others Thursday morning at a high-rise office building in the heart of Cincinnati before dying in a hail of police gunfire.

The shooting at the 30-story Fifth Third Center sent people running for cover across the city's Fountain Square amid cries of "Shooter!" Police responded within seconds, and four officers opened fire, bullets smashing through glass doors and the gunman falling to the floor, authorities said.

Police identified him as Omar Enrique Santa Perez,...