A Dallas Area Rapid Transit police officer receives comfort at the Baylor University Hospital.
AP
2 of 12
Dallas police respond after shots were fired at a Black Lives Matter rally in downtown Dallas.
AP
3 of 12
Dallas Police respond after shots were fired at a Black Lives Matter rally in downtown Dallas on Thursday, July 7, 2016. Dallas protestors rallied in the aftermath of the killing…
AP
4 of 12
Dallas police officers stand in a line near the site of shootings in downtown Dallas, early Friday, July 8, 2016. Snipers opened fire on police officers, police said; some of…
AP
5 of 12
Dallas Police respond after shots were fired at a Black Lives Matter rally in downtown Dallas on Thursday, July 7, 2016. Dallas protestors rallied in the aftermath of the killing…
AP
6 of 12
Dallas police shield bystanders after shots were fired on July 7.
AP
7 of 12
epa05414440 Dallas police officers face protesters on the corner of Ross Ave. and Griffin street after eleven police officers were shot during a peaceful protest in Dallas, Texas, USA, 08…
EPA
8 of 12
DALLAS, TX – JULY 7: Dallas police stand near the scene where four Dallas police officers were shot and killed on July 7, 2016 in Dallas, Texas. According to reports,…
9 of 12
Dallas police respond after shots were fired during a protest over recent fatal shootings by police in Louisiana and Minnesota, Thursday, July 7, 2016, in Dallas. Snipers opened fire on…
AP
10 of 12
Police stand near a baracade following the sniper shooting in Dallas on Thursday, July 7, 2016. A fourth police officer was killed and two suspected snipers were in custody after…
Getty Images
11 of 12
Dallas police respond after shots were fired during a protest over recent fatal shootings by police in Louisiana and Minnesota, Thursday, July 7, 2016, in Dallas. Snipers opened fire on…
AP
12 of 12
A Dallas police officer steps out of a vehicle as he arrives in front of Baylor University Medical Center where several others were police were already gathered, Friday, July 8,…
A P