They identified the second driver today...

http://www.boston.com/news/nation/articles/2011/10/01/2_crashes_2_missing_men_2_different_results/

He had been there a week before the second crash and was "badly decomposed".

Can you imagine... You plunge off a cliff and at the bottom of the cliff is another car and badly decomposed body? That must have been very demoralizing... almost like a living hell of sorts. Sounds like something from a horror movie.