For those who are asking the question - Congo AAC (ex DAC) are heading the crash investigation into the B1900 accident.
A preliminary report following the initial investigation teams visit to the site (The day after the accident - yes things here are changing) has already been prepared for the NTSB and SA-CAA.
Access to the site has been difficult due to recent heavy rains and believe it or not a pride of lions having taken refuge around the site (Yes I know - Only in Africa!)
The most likely scenario seems to indicate an experienced crew entered or passed close to an active cell with the resulting downdrafts causing severe loss of altitude resulting in a collision with the surrounding terrain.
The attitude and configuration of the aircraft does NOT indicate CFIT but rather a fight on the part of the crew to maintain control of their aircraft until the very end.
The weather reported by Bukavu at the time was thunderstorms in the vicinity of the airport.
More information will be made available next week.
And YES Whenwe - they do read websites such as this and others to help provide additional information into this tradegy!
http://www.monuc.org/Home.aspx?lang=en