The video we saw was shot by a person in the audience maybe 20’from the stage. It shows the pyro start going off and lighting off the foam they were using for sound insulation on the stage.
It takes the audience several moments to realize the situation. The flame spread was fast, intense and smokey. People start for the doors they came in and pass other doors on the way. Quite a few were locked and people piled up there.
The person who shot the video gets out into the parking lot and then goes back to doors and captures many peoples last moments.
I doubt the video is in public domain.
I remember seeing a video of that event. It was captivating because I have, in my younger years, visited many clubs. This event kind-of hit home for me. Horrible, but at the same time, I couldn't stop watching.
I remember an inside video like that. The tragic scene I was referring to was shot from outside by a news crew, iirc.