Manhunt underway after 3 killed, 2 wounded in U.S. Maryland shooting

People gather across the street from the scene of a shooting at a business park in the Edgewood area of Harford County, Md., Wednesday, Oct. 18, 2017. A gunman killed several co-workers and wounded others at Advanced Granite Solutions before fleeing the scene, authorities said. [Photo: AP/Patrick Semansky]