I thought they had to keep the body until the tox results come back.
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Crash site. 7:20 P.M.:
Four hours and 20 minutes after the crash, the first Croation Special Forces search party arrives on the scene. They find only stewardess Kelly surviving. They call for a helicopter to evacuate her to the hospital. When it arrives, Kelly is able to get on board without assistance from the medics.
But Kelly never completes the short hop. She dies an route. According to multiple reports given to journalist/editor Joe L. Jordan, an autopsy later reveals a neat three-inch incision over her main femoral artery. It also shows the incision came at least three hours after all her other cuts and bruises.
This creates in your mind a horrifying scene in the back of the chopper, as one Special Forces operative holds down the struggling woman while another slice her leg.
Further autopsies of other passengers probably will not be made. Clinton ordered the cremation of all victims - it's hard to perform autopsies on ashes.
From: https://whatreallyhappened.com/RANCHO/CRASH/BROWN/kelly.html