The driver left the scene prior to the explosion. But the cover-up will be that he was incinerated in the explosion.
Coincidence. Coal mines, oil rigs, refineries.. See post: http://www.freerepublic.com/focus/f-chat/2504127/posts (I might have missed the mark a bit regarding the oil rig sinking.. It was a floating oil rig, but.. You can’t rule out the “art of coincidence”.