George Floyd's autopsy

You can bet that the M.E. is crossing every T and dotting every I on this one.
From Tom Lydon of KMSP-TV, in Minneapolis/St. Paul:

I am not saying that Chauvet is not 100% guilty but... One of the major symptoms of a heart attack is shortness of breath. If the officer was constricting Floyd's throat enough to suffocate him, how could someone record his cries from a cell phone 15+ feet away. He would barely have been able to whisper. Chauvet needs to be convicted of murder but Floyd was not strangled. The stress of his being arrested coupled with his drug use and an underlying heart condition was what did him in.