There's no sound on the video but it shows dozens of teens and young adults watching a fight.
Then several people pull guns and start shooting.
"We are taking it seriously. That's one reason we're putting it out there to the public," Capt. Kip Hart of the Tuscaloosa Metro Homicide Unit said.
It happened atop a downtown Tuscaloosa parking deck at Jack Warner Parkway and Greensboro Avenue on July 23 just after 11 p.m.
No one was injured.
But bullets hit some cars in the shootout out.
Police don't think the violence is over.
"I feel comfortable saying it will probably happen again whether it's between those two specific parties or other people involved in all this," Hart added.
Officers found more than 100 shell casings.
Bullet holes are still visible from a gun battle involving as many as six people shooting handguns and one rifle.
So far, no one has been charged.
Anyone with information is asked to call Tuscaloosa Police or Crimestoppers.
"It's going to fall on the public and the people who know the people to contact us directly or indirectly or anonymously and let us know who the people are," went on to say.
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