I don't think anyone knows right now.
Here is the preliminary from the FAA:
http://www.faa.gov/data_statistics/a...a/B_1020_N.txt
I did hear the other day from a guy that was up there that they used 100LL in the plane. Can't help but notice from this photo that 100LL probably isn't the best fuel to put in that bird.
http://www.planepictures.net/netshow.php?id=250642
Isn't that thing turbine powered?