Downtown Dallas Ambush Leave 5 Officers Dead

DALLAS--A Peaceful protest turned to chaos.

It was an ambush that left five cops dead, seven injured, and two civilians shot.

A standoff lasted until the wee hours, ending with one suspect's death. Cops now say he was the lone gunman.

"All I know is that this, this must stop," Dallas Police Chief David Brown said.

And through the night, downtown was roped off. An active crime scene.

Cops took pictures, counted bullet casings, and swept the area looking for bombs. They didn't find any.

"We need prayers," Mayor Mike Rawlings said. "And prayer is good."

By sunrise, Dallas was different.

We were different.

Not since 1963 has our innocence been shattered like this.

Through it all... a message of hope.

"We are all here for you," Heather Mendoza said at a memorial outside Dallas Police Headquarters. "It's heavy on our hearts. It's heavy on your hearts."

"Let's be clear. There's no possible justification for these kinds of attacks or any violence against law enforcement," President Obama said from a summit in Poland.

President George W. Bush wrote, "Murdering the innocent is always evil, never more so than when the lives taken belong to those who protect our families and communities. "

And Attorney General Loretta Lynch vowed to see justice served.

"We intend to provide any assistance that we can to investigate this attack," she said.

Flags were lowered to half-staff to mark a city in mourning.

A nation* in mourning.

And just hours after the chaos, downtown Dallas was filled with people once again, proving that no matter what our differences are, we've still got each other.