The Oakland warehouse that went up in flames Friday night was a popular location for underground EDM shows ... and footage of a previous concert shows the set up was extremely claustrophobic.
The Obscura Machina show -- featuring several DJs -- went down in June at the art commune known as the Oakland Ghost Ship. You can see all the equipment and wires packed tightly into the "stage" area.
Antique musical instruments and lamps, mannequin parts and dozens of other tchotchkes are surrounding the DJ and the crowd. This show went off without a hitch, but the danger that was likely present Friday night is obvious.
The death toll is now at least 24.