Pow, I mean, a sound I've never heard before.

Ten seconds later you hear people screaming, bodies down, bodies down, and everyone starts scattering.

A July 4th parade marred by another mass shooting.

Six people killed, many more injured. A 22-year-old man is in custody. We're live on the scene outside Chicago.

Also, two police officers shot and injured in Philadelphia during a July 4th celebration there.

People scattering as fireworks and bullets light up the night sky.

Plus, a state of emergency in Akron, Ohio, as outrage grows over the police shooting of

Jalen Walker.

Good morning and welcome to way too early on this Tuesday, July 5th. I'm Jonathan Lemire.

There has been yet another mass shooting in America, this time on the nation's birthday.

Six people were killed and 38 injured when a gunman opened fire at a 4th of July parade in Highland Park, an affluent suburb of Chicago.

This video shows a band play when seemingly out of nowhere, people start running.

Other footage caught the sound of the gunfire, and a warning, it is jarring.

... And a warning, it is jarring. That video shows the series of shots you just heard was followed by a second round lasting

about seven seconds, the gunman on top of a roof with a high-powered rifle.

Parade goers scattered in all directions leaving behind chairs, toys, baby strollers, and blankets.

Here's one witness describing the scene.

Maybe a few minutes into the parade started, like the marching band had just passed. I heard

subsequently like pop, pop, pop, pop, all-in-quipped obsession. And I thought to myself, that's not,

that sounds like gunshots, but like there's no way. We're sitting in Highland Park at 10 o'clock in the

morning. There's no way that's gunshots. Must be fireworks. And a few seconds later, people started to run past us.

I grabbed my daughter at that point and just started running. The victims range in age from 8 to 85

...