The State's own witnesses have said:
St. George would be an OD death if based on tox reports from the autopsy.
St. George's blood flow to his brain (or whatever was left of it after years of being a drug fiend) was not cut off, and instead he croaked from not being unable to keep breathing in his position on the ground with weight on him - a totally different reason for his demise than anything the public has been told since last year.
Chauvin knee was not placed on St. George's neck for any impactful amount of time, but instead was mostly on his back and shoulders.
That the arrest, placement on the ground, and use of force to keep him in place, until EMS arrived, was justified. What they differ with is when the force should have been taken off him, and left on the ground by himself. Now the politically appointed Chief of Police said he should have gotten off St. George earlier, while the State's use of force expert witness said he too would have restrained the arrestee until EMS arrived.
That there was a hostile crowd around the arrest site, that prevented EMS from arriving as soon as they could have otherwise.
And this is from the prosecution's own witnesses. Though one of them was so bad for their case (the medical support coordinator), that the defense is going to call them again, as their witness!
Will any of this matter? It should, but most likely won't. St. George was alive (sort of) when he was arrested, then got "deaded" from his interaction with the cops. That and Burn Loot Murder, will probably be enough for the jury.
In firefighting courses, you learn about the fire triangle - fuel, heat, and oxygen. All three are needed to start a fire and keep it going.
Here you had three factors as well - Floyd's horrible heath issues, including a 3x lethal does of fentanyl in his system, a 5 day hospital stay 2 months before from ODing, meth, dope, high blood pressure, heart disease, diabetes, sickle cell, and the Wuhan virus. As I said before, Mr. Glass looked like Wolverine compared to him.
Second factor was his resistance of arrest, as if he'd simply sat in the back of the cop car, which he was already in, he'd have made it out alive that day. But he acted like he was drugged up (which he was), insisted on being taken out of the car, struggled with officers, and ended up on the ground.
Third was the cops putting and keeping him on the ground, some weight on him to keep him in place (though Chauvin weighted a whopping 140 lbs compared to Floyd's 200+), and not jumping off him at the Goldilocks amount of time.
You combine all three, and he's dead (Jim).