Mobutu should be calm and patient. It seems he didn't pay enough attention to the article. People who found the aircraft debris are not aviation experts and five-year period in rainy jungle could not preserve human remains.
As CVR is recovered it is interesting to try to restore its records. I am not sure that CVR was serviceable in those days due to circumstances called "african flying" but who knows... btw if anyone comes to crash site again he should try to see aircraft registration mark (but where and how to see without digging?) or to find aluminium plate(s) with serial number attached to the wall in tail section or to another part(s) of the airframe similar to sample in link below. But... it may be very difficult or impossible.
http://www.polarpost.ru/f/uploads/350_aedea_aio-4.jpg