DALLAS, TX - JULY 8 : People attend a vigil outside Dallas Police headquarters in Dallas, Texas, USA, 08 July 2016. (Photo by Bilgin Sasmaz/Anadolu Agency/Getty Images)
DALLAS, TX - JULY 8 : People attend a vigil outside Dallas Police headquarters in Dallas, Texas, USA, 08 July 2016. (Photo by Bilgin Sasmaz/Anadolu Agency/Getty Images)