Thinking this through, they probably filled the car with gas until they couldn’t breathe and then hit the firework mortar to set it all off. Also gives them a higher chance of ending it all then, as opposed to the “oops, all fire!” version, which would have been a lingering way to go.
Says a lot that like nobody knew what to make of it until the propane tanks were found.
Its still unclear if the driver intended for it to explode or if somebody tossed a bunch of flammables in the back and the truck lit it.
Thinking this through, they probably filled the car with gas until they couldn’t breathe and then hit the firework mortar to set it all off. Also gives them a higher chance of ending it all then, as opposed to the “oops, all fire!” version, which would have been a lingering way to go.