DALLAS, USA - JULY 09 : A police officer cries for her colleagues at the commemorative ceremony, outside Dallas Police headquarters in Dallas, Texas, USA, 09 July 2016. Five Dallas police officers were killed after at least 10 were targeted by snipers late Thursday in a Black Lives Matter protest in the city, according to U.S. authorities. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
