Cannot wrap my head around it --limo fire

Looks to me the fire started at the back, by the doors. The only way out was through the partition which is how the 4 survivors got out and where the 5 victims were found. I am surprised there isn't some kind of easy release windows like on a bus.

Faced with the choice of burning alive or going through the fire and out the door, I would take through the fire and out the door.....

Something is just weird about this entire situation.