ATLANTA -- Investigators identified a 30-year-old man from suburban Atlanta on Saturday as the person who opened fire on the U.S. Centers for Disease Control and Prevention, killing a police officer and spreading panic through the health agency and nearby Emory University.

The Georgia Bureau of Investigation said the shooter was Patrick Joseph White of Kennesaw, Ga. DeKalb County police officer David Rose was killed Friday while responding. No one else was hit, although police said four people reported to emergency rooms with symptoms of anxiety.

The gunman died at the scene, Atlanta Police Chief Darin Schierbaum said Friday, adding: "We do not know at this time whether that was from officers or if it was self-inflicted."

Police say White opened fire at the campus from across the street

See Full Page