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Live updates on George Floyd’s death

Dr. Martin Tobin: ‘A healthy person subjected to what Mr. Floyd was subjected to would have died.’

Dr. Martin Tobin testified that he was aware that George Floyd had preexisting conditions as mentioned in his autopsy and medical records. 

“Do you have an opinion to a reasonable degree of medical certainty as to whether a person who had none of those preexisting conditions, a healthy person, would have died under the same circumstances as Mr. Floyd?” prosecutor Jerry Blackwell asked him.

“Yes. A healthy person subjected to what Mr. Floyd was subjected to would have died,” Tobin said. 

The prosecution has said Floyd died from Chauvin’s kneeling on his neck. The Hennepin County Medical Examiner’s Office classified Floyd’s death as a homicide that occurred while he was being restrained by police.

Floyd’s cause of death was listed as a “cardiopulmonary arrest complicating law enforcement subdual, restraint, and neck compression.” Under “other significant conditions” it said Floyd suffered from hypertensive heart disease, and listed fentanyl intoxication and recent methamphetamine use. 

Pulmonary expert: Chauvin held knee on Floyd’s neck for 3 minutes after there was no oxygen left in his body

A renowned pulmonary expert testified that he calculated Derek Chauvin’s knee was on George Floyd’s neck for more than 3 minutes after “there was not an ounce of oxygen left” in his body.

Dr. Martin Tobin said at 8:25 p.m. on the day he died Floyd reached the point where he did not have “an ounce of oxygen left in his entire body” as Chauvin continued to have his knee pressed against his neck while he was handcuffed on the ground.

“The knee remained on the neck for another three minutes and two seconds after we reached the point where there was not one ounce of oxygen left in the body,” he added.

Dr. Martin Tobin, expert on breathing, testifies half of Derek Chauvin’s body weight was on George Floyd’s neck

Dr. Martin Tobin, a world renowned expert on breathing, testified as jurors were shown a photo in which Derek Chauvin’s toe is lifted slightly off the pavement as he kneels on George Floyd’s neck.

Tobin says that by his calculation, at one point, 91.5 pounds — half of Chauvin’s body weight and half the weight of his gear — was on Floyd’s neck.

“This means that all of his body weight is being directed down at Mr. Floyd’s neck,” Tobin said.

Pulmonary expert says knee on Floyd’s neck ‘extremely important’ when considering lack of oxygen

A pulmonary expert testified Thursday morning about why the knee on George Floyd’s neck and back was “extremely important” when considering what caused the lack of breathing that led to his death.

Dr. Martin Tobin loosened his tie, unbuttoned the top button on his shirt and instructed the jurors to feel their necks as he testified about why a knee on the neck was so important.

He said that a knee on Floyd’s neck was “extremely important because it’s going to occlude the air getting in through the passageway.”

He walked the jurors through a demonstration of their own neck anatomy, pointing them to the  hypopharynx, which he called “vulnerable.”

“The hypopharynx is very important for understanding this case for a number of reasons. Because it’s so vulnerable, because it has no cartilage around it, it’s going to be an area that is compressed,” he said. “It’s extremely small to breathe through and it becomes very important for being able to continue to breathe through.”

Tobin added that Chauvin’s knee was on that area of Floyd’s neck at points, with enough pressure to cut off his breathing.

Pulmonologist: Derek Chauvin’s knee among four forces that caused shallow breathing that led to George Floyd’s death

Dr. Martin Tobin, a pulmonologist, testified Thursday that he believes there were four forces that caused George Floyd’s shallow breathing and led to his death. 

“The main forces that are going to lead to the shallow breath are going to be that he’s turned prone on the street, that he has the handcuffs in place combined with the street and then that he has a knee on his neck and then that he has a knee on his back and on his side,” Hines said. “All of these four forces are ultimately going to result in the low tidal volume, which gives you the shallow breaths that we saw here.” 

The prosecution has argued that George Floyd died from Derek Chauvin kneeling on his neck for more than 9 minutes.

Pulmonary doctor testifies George Floyd died of ‘low level of oxygen’

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The first witness called Thursday in the murder trial of Derek Chauvin was a physician in pulmonary and critical care medicine who said George Floyd died from a “low level of oxygen.”

Dr. Martin Tobin is a physician with the Edward Hines Jr. VA Hospital and Loyola University Medical School in Chicago. He has been working in respiratory physiology for about 46 years and has served as an expert witness in court before.

Tobin said he was asked to review medical records and watch videos related to the case. He said he believed Floyd died of a “low level of oxygen” that caused damage to his brain and also led his heart to stop beating.

The state is expected to call multiple medical experts over the next two days.

Expert: Chauvin never took knee off Floyd’s neck area

MINNEAPOLIS — Officer Derek Chauvin had his knee on George Floyd’s neck — and was bearing down with most of his weight — the entire 9 1/2 minutes the Black man lay facedown with his hands cuffed behind his back, a use-of-force expert testified Wednesday at Chauvin’s murder trial.

Jody Stiger, a Los Angeles Police Department sergeant serving as a prosecution witness, said that based on his review of video evidence, Chauvin knelt on Floyd’s neck or neck area from the time officers put Floyd on the ground until paramedics arrived.

“That particular force did not change during the entire restraint period?” prosecutor Steve Schleicher asked as he showed the jury a composite image of five photos taken from the various videos of the arrest.

“Correct,” Stiger replied.

How Derek Chauvin’s trial is bringing down the blue wall

During his lengthy testimony Monday, Minneapolis’ police chief minced no words in condemning the actions of Derek Chauvin, the former officer who is charged with murder in the death of George Floyd.

Still, Arradondo’s testimony was rare. That he was joined by a string of other law enforcement officers was remarkable and a sign that the so-called blue wall of silence is crumbling.

Paul Butler, a law professor at Georgetown University Law Center, said the blue wall means “that sometimes police officers close rank and — right or wrong — they’re blue.”

Click here to read the full story.

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bourbiza

Bourbiza Mohamed. Writer and Political Discourse Analysis.

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