Two snipers opened fire on police in Dallas on July 7 and reportedly killed four Dallas police officers and one Dallas Area Rapid Transit (DART) officer (video below).
The shooting, which wounded seven more officers and two civilians, occurred during the end of a peaceful anti-police brutality march, notes NBC Dallas-Fort Worth.
The Dallas Police Department tweeted: "A person of interest whose picture has been circulated just turned himself in. Another alleged suspect was in a shootout with Dallas SWAT officers. That suspect is also in custody. A suspicious package was discovered near this suspect's location. The package is being secured by the DPD bomb squad."
The person of interest was an unidentified black man dressed in a camouflage outfit; no word if he has been charged. According to Dallas Police Chief David Brown, the ATF and FBI have joined the investigation.
"Some officers were shot in the back," Brown said during a press conference, notes CBS Dallas-Fort Worth.
One of the protest organizers, identified as Mr. Hughes by CBS Dallas-Fort Worth, said:
We've done protests before, and they've all been peaceful, they've all gone smoothly, we've had no issues. So we didn't expect anything to happen this time. We came out, there was blacks, whites, Latinos. There was a mixed community here protesting, and this just came out of nowhere. As a matter of fact, we were towards the end of the protest when the shots started firing off. I'm still kind of started and shaken up because, as you know, being in the front it's almost like the gunshots were coming at us.
"They were shooting down at police," protester Jamal Johnson said. "I saw officers get hit."
"Everyone was screaming, people were running. … I saw at least probably 30 shots go off," Clarissa Myles, a witness, told the news station.
"Are they really shooting?" Myles added. "This was a peaceful protest."