"He's breathing. He's talking. He's not snoring. He's saying, 'Please, please get off of me, I can't breathe.' That is not a fentanyl overdose. That's someone begging to breathe," an expert testified.
Nekima Levy Armstrong, a civil rights attorney and activist, says it's "amazing" the Minneapolis police chief and others testified against Chauvin. But she's unsure if the trial will bring reforms.
"Just because [someone is] speaking does not mean they are breathing adequately," Minneapolis police medical support coordinator Nicole Mackenzie testified.
In emotional testimony, Courteney Ross described to the jury the man she knew, adding detail to a life that ended when George Floyd died in police custody last Memorial Day.
"I felt the need to call the police on the police," Donald Williams said of the 911 call he made after an ambulance took George Floyd away. He said Derek Chauvin used a "blood choke" on Floyd.
The young woman, who was 17 when she filmed former Minneapolis police officer Derek Chauvin holding his knee on George Floyd's neck, says the only violence she saw was "from the cops."
Two key questions are at play in Derek Chauvin's murder trial: What killed George Floyd, and did Chauvin use excessive force? Civil rights lawyer Charles Coleman Jr. discusses the early takeaways.
The trial is starting in earnest 10 months after George Floyd's killing triggered outrage and protests against racial inequality. The highly anticipated trial is expected to last about four weeks.