Jury instructions are here - https://www.mncourts.gov/media/StateofMinnesotavDerekChauvin
Great link.
So which element is the issue for those feel he is not guilty?
The elements of the crime of Murder in the Second Degree while committing felony are:
First Element: The death of George Floyd must be proven.
Second Element: The Defendant caused the death of George Floyd.
Third Element: The Defendant, at the time of causing the death of George Floyd, was committing or attempting to commit the felony offense of Assault in the Third Degree. It is not necessary for the State to prove the Defendant had an intent to kill George Floyd, but it must prove that the Defendant committed or attempted to commit the underlying felony of Assault in the Third Degree.
There are two elements of Assault in the Third Degree:
(l) Defendant assaulted George Floyd.
“Assault” is the intentional infliction of bodily harm upon another or the attempt to inflict bodily harm upon another. The intentional infliction of bodily harm requires proof that the Defendant intentionally applied unlawful force to another person without that person’s consent and that this act resulted
in bodily harm.
(2) Defendant inflicted substantial bodily harm on George Floyd. It is not necessary for the State to prove that the Defendant intended to inflict
substantial bodily harm, or knew that his actions would inflict substantial bodily harm, only that the Defendanf intended to commit the assault and that George Floyd sustained substantial bodily harm as result of the assault.