‘Life goes out’

Dr. Martin Tobin, a lung and critical care specialist, was one of the most compelling of many medical experts called by the prosecution. He discussed the mechanics of breathing in simple terms, including loosening his tie, placing his hands on his own neck and encouraging jurors to do the same as he explained why he believes Floyd died of a lack of oxygen that damaged his brain and stopped his heart.

Tobin also narrated video of Floyd held to the pavement and pinpointed what he said was a change in Floyd’s face and a telltale leg kick that told him Floyd was dead — around 5 minutes after police began holding him down.

“You can see his eyes. He's conscious, and then you see that he isn't,” Tobin said. "That’s the moment the life goes out of his body.”