At the start of Thursday’s work Chauvin informed the court that he would not testify, citing his 5th Amendment right not to speak.
“Is it your decision not to testify?” Asked Judge Peter Cahill.
“It is, your honor,” said Chauvin.
Whether Chauvin would testify in his own defense has been the subject of speculation since the trial began 14 days ago.
Chauvin confirmed to Judge Cahill that he had chosen not to address the jury and that he had neither been threatened nor promised anything in return for this decision.
Under the constitution of US law, everyone has the right to invoke the 5th Amendment and the right not to self-incriminate.
The prosecution briefly recalled pulmonologist Dr Martin Tobin to debunk claims that carbon monoxide contributed to Mr Floyd’s death.
The idea was raised by a retired medical examiner Dr. David Fowler in his testimony on Wednesday for the defense case – which came as a shock to the prosecution.
Dr Tobin told the court that hospital tests on Mr Floyd on the day of his death showed his blood to be 98% saturated with oxygen, meaning “the maximum amount of carbon monoxide would be 2%” .
Following this, the two sides finished presenting their cases.
Judge Cahill told the court final arguments are scheduled for Monday, after which the jury will begin deliberating.
Testifying for the defense on Wednesday, Dr Fowler claimed that Mr Floyd died of a sudden heart rhythm disturbance as a result of his heart disease.
He said his death was the result of a multitude of factors.
Dr Fowler told jurors the stress of his arrest and the release of adrenaline from a tumor in his abdomen contributed, as did possible carbon monoxide from the exhaust of the police car as he was being held nearby, along with fentanyl and methamphetamine in his system.
This contradicts prosecution experts who said Mr. Floyd died of lack of oxygen from the way Chauvin pressed his knee to his neck for nine and a half minutes.
However, during cross-examination by the prosecution, Dr. Fowler had to admit that the evidence did not support some of his conclusions.
He admitted that there was no carbon monoxide found in Mr. Floyd’s system after his death. The police car was a hybrid car and he was unable to say for sure that the engine was running, rendering judgment due to the liquid leaking from the exhaust pipe.
Dr Fowler also told the court he would characterize the mode of death as ‘indeterminate’ because there were too many conflicting factors, rather than homicide, as the county chief medical examiner ruled. .
Chauvin, 45, is charged with murder and manslaughter following the death of Mr Floyd after his arrest in May 2020 on suspicion of passing a fake $ 20 bill at a neighborhood market.