I had a couple of extra days on the ground at DG due to this accident.
Unconfirmed rumour is that the 7500' of runway was used as the boys touched down they attempted a go-around (hard to believe that the pre-landing checks had not been done - but that seems to be the case). Luckily no one hurt, but I was not aware as a previous post intimates that the B1 was ever on fire.