Dallas Police Shooting Victims: Photos of the Slain Officers

A lone gunman opened fire on officers during a march against police brutality in Dallas, Texas, on Thursday, killing five officers and wounding seven others. Two civilians were also injured, police said. The gunman was later killed by police using a bomb detonated by a robot during a lengthy standoff. Click through the gallery to see photos of the slain officers, and to learn about their stories. (Getty)