Subcharter??
I dont think that Air 2000 owned the a/c. As far as I know they've only got a 402. It must have been a subcharter and then I would suppose that it would be from one of the afore mentioned companies i.e. Ryan Blake or Charlan.
It would seem that CFIT could possibly be the cause, but am only speculating and dont want to jump to any conclusions.
Thoughts to the families affected.
st4g