You say you have read the autopsy.
Please post your source so we all can see the “asphyxiation” diagnosis.
It has been quoted here numerous times. Plain black and white from the second (privately funded) autopsy report.
So, here's a challenge for all you nonbelievers. Just drive on down to the local feed, grocery, or hardware store. Purchase six fifty pound bags of feed, or sand, or cement, or sugar, or salt. Then lay on the pavement face down and have your buddy lay three of them across your shoulders, and three more across your kidneys/abdomen.
If you are still alive nine minutes later, come on here and tell us all about it. Post pics please!
Don't ask me to place the bags on your back. I don't want to go away for murder.
