12:25 PM PT -- Ben Crump says the family's independent autopsy shows George absolutely died from asphyxia due to the compression on not only his neck, but also his back.
Dr. Wilson said "mechanical asphyxia" was his cause of death and homicide was the manner of death.
George Floyd's family does not agree with the Medical Examiner's findings, so they have had their own autopsy conducted ... and will announce the results in a news conference shortly.
TMZ will be live streaming the independent autopsy findings, which come from famed forensic pathologists, Dr. Michael Baden, and Dr. Allecia Wilson. Baden is known for his involvement in the O.J. Simpson trial, and more recently, conducting a private autopsy for Jeffrey Epstein ... and suggesting he may have been murdered.
Floyd's family enlisted the 2 experts after the M.E. concluded ... "The combined effects of Mr. Floyd being restrained by the police, his underlying health conditions and any potential intoxicants in his system likely contributed to his death."