First round Eliminations are done, so I have a minute to reply. It's not clear what happened, I didn't see the incident as I was in our Pit at the time, but from talking to some of the Officials, what is known is that for some reason Randy's car veered sharply into the opposing lane after both cars had crossed the finish line, where he was T-boned by the other car driven by Bob Mandell. Bob Mandell is okay.
Whether a cause will be able to be determined, remains to be seen. I'm sure video of the crash is being heavily reviewed, and what's left of the car will be inspected. As happens with on-track fatal accidents, usually the respective State Police will investigate. But I've never had much faith in their findings, as they are familiar with modern road-legal passenger cars, and much lower speeds. Not purpose built Drag Cars which in this case were moving at around 200 mph at the time of impact.