Expert: Lack of oxygen killed Floyd, not drugs or bad heart

Explaining George Floyd Officer Trial Technology

FILE – In this May 25, 2020 file image from Minneapolis city surveillance video, Minneapolis police are seen attempting to take George Floyd into custody in Minneapolis, Minn. The video was shown as Hennepin County Judge Peter Cahill presided on Monday, March 29, 2021, in the trial of former Minneapolis police officer Derek Chauvin, in the death of Floyd at the Hennepin County Courthouse in Minneapolis, Minn. (Court TV via AP, Pool, File)

MINNEAPOLIS (AP) — A medical expert says George Floyd died from a lack of oxygen that damaged his brain and caused his heart to stop.

Dr. Martin Tobin is a lung and critical care specialist from Chicago. He testified Thursday at former Officer Derek Chauvin’s murder trial that Floyd’s breathing was too shallow to take in enough oxygen while he was pinned on his stomach with his hands cuffed behind his back for 9 1/2 minutes.

His testimony came a day after a use-of-force expert said Chauvin had his knee on George Floyd’s neck area the entire time that he pinned

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