George Floyd was killed by lack of oxygen – and not by drugs, Irish doctor tells murder trial

Former Minneapolis policeman Derek Chauvin ‘had half his weight on man’s neck’ at times

Breathing expert Dr Martin Tobin yesterday at the trial of former Minneapolis police officer Derek Chauvin. Photo: Reuters

Amy Forliti in Minneapolis

George Floyd died of a lack of oxygen from being pinned to the pavement with a knee on his neck, a medical expert testified at former Officer Derek Chauvin’s murder trial yesterday.

Irish-born Dr Martin Tobin emphatically rejected the defence theory that Mr Floyd’s drug use and underlying health problems were what killed him.