Nelson told the jury that if a person dies from a different physiological cause after they're arrested, the defendant is not liable "because it's not in the natural course of events and it's not the natural result of the defendant's act." Going through the testimony of each medical expert who was called by the state, Nelson called into question the prosecution's assertion that asphyxia caused Floyd's death. "It flies in the absolute face of reason and common sense," he said. "It's astounding. Especially when you consider the actual findings of Dr. Baker. Because Dr. Baker is the only person who actually performed the autopsy in this case."