Barb, from what I seen and also have heard, in a tip over like that, I belive the pigs panic, roll over and die of their own weight, strangle and also just die of fright.
I wish I would have hung around to see how they handle the aftermath.
I dont know if they butchered them on the spot to save the meat or just haul them off to burn and bury or what?
That particular exit north end of cedar city mile 62 north on I-15 is built wrong. I belive the on ramp going south is graded or "cambered" wrong. Right there is also a huge "Loves" truck stop. I live about a mile from it. I bet "Truckmeup" must have been there?