LIVE UPDATES: Derek Chauvin trial continues Friday; medical examiner expected to testify

The murder trial of former Minneapolis police Officer Derek Chauvin is set to resume on Friday morning. 

On Thursday, a medical expert testified that Floyd died of a lack of oxygen from being pinned to the pavement with a knee on his neck, not because of drug use and health issues. "A healthy person subjected to what Mr. Floyd was subjected to would have died," said prosecution witness Dr. Martin Tobin, a lung and critical care specialist at the Edward Hines Jr. VA Hospital and Loyola University’s medical school in Illinois.