071216_02P_FS

A policeman visits a makeshift memorial at the Dallas police headquarters, Monday, July 11, 2016, in Dallas. Five police officers were killed and several injured during a shooting in downtown Dallas last Thursday night. Eric Gay/AP Images. http://www.apimages.com/metadata/Index/APTOPIX-Police-Shootings-Dallas/2b62b93227e943d4b1bc1fbfe5886b30/1/0