The prosecutors closing argument is having Dr. Tobin declare Floyd's O2 level was 98% when taken at the hospital... to discredit the carbon monoxide theory.
Is that normal for an asphyxiation victim? To my laymind, that would imply the lungs were working until the point the heart wasn't.
Well, the media has certainly sold this as a nearly slam dunk win for the prosecution. It's gonna be epic if Chauvin gets off. Which he should. There was good cause for reasonable doubt before this, despite the defenses ineptitude.