Early reports suggest that they were trapped in the vehicle. Horrifying and sad if true.
Someone who also had been at the function, but was driving in a separate car, was able to pull the surviving victim out of the Cybertruck.
It sounds like one of the doors got popped open but the other victims were partially incapacitated or unable to find the release. Judging by the speed of impact, and shape of the body/chassis, it's likely they were alive after impact and burned to death.
"Other recalls covered rearview camera images that don’t activate immediately after shifting into reverse, trim pieces that can fall off, windshield wipers that can fail, and an incorrect font size on instrument panel warning lights. In April, the futuristic trucks were recalled to fix gas pedals that can get stuck in the interior trim."
I'm just imagining what SNL would look like if Ford fucked in that badly in that short a period of time, especially when you take into consideration other reported issues around trapped passengers in other vehicle models from the same manufacturer.