That evidence is expansive, he said, and is far broader than what they will see in video footage that shows the final 10 minutes of the encounter between Floyd and the police.
"He's not f***ing moving!" one bystander can be heard saying.
Chauvin, dressed in a gray suit with a blue tie, was at the defense table while the video was played and took occasional notes on a yellow legal pad.
Second-degree unintentional murder with a maximun 40 years in prison.
In their opening statement, prosecutors are expected to outline a road map of their case and tell jurors what to expect to see, said Mike Brandt, a local defense attorney who is watching the case closely.
The tape proves Mr Chauvin was "engaging in behaviour that was imminently risky. without regard for its impact on the body of George Floyd", Mr Blackwell said.
"That he put his knees upon his neck and his back, grinding and crushing him, until the very breath, no ladies and gentlemen, until the very life was squeezed out of him", Mr Blackwell said.
Chauvin is on trial for murder in the death of George Floyd in police custody in May 2020.
On Sunday night, hours before opening statements were set to begin, national civil rights leaders appeared at a prayer service alongside several of Floyd's family members.
"Today starts a landmark trial that will be a referendum on how far America has come in its quest for equality and justice for all", Crump said.
The Floyd family and supporters knelt in protest outside the courthouse for eight minutes and 46 seconds, the amount of time Mr Chauvin knelt on Mr Floyd's neck during his arrest.
And a 911 dispatcher who was watching the incident through a fixed security camera also called the police, Blackwell said.
"This case is about Mr. Derek Chauvin", he said.
The white officer "didn't let up" even after a handcuffed Floyd said 27 times that he couldn't breathe and went limp, Blackwell said in the case that triggered worldwide protests, scattered violence and national soul-searching over racial justice.
Philonise Floyd, a brother of George Floyd, said he had faith that Chauvin would be convicted.
The murder trial of Derek Chauvin for the death of George Floyd is underway and the evidence for conviction is blatantly obvious, Floyd's family attorney Ben Crump told "The Story with Martha MacCallum" exclusively.
Mr Blackwell said their evidence would be shown to the court of Chauvin putting his hands around Mr Floyd's neck while he was in the auto.
Mr Nelson cited the fact that Mr Floyd would not co-operate during his arrest and the heckling Mr Chauvin and the other officers had to contend with from a large, hostile group of onlookers.
He said he decided against entering the shop because "the energy was off", and instead began a conversation with the arresting police officers and urged them to check Mr Floyd's pulse.
Chauvin's defense lawyer asked a jury to ignore politics and social issues in the highly charged case.
"There is no political or social cause in this courtroom", Nelson said.
"Chauvin's in the courtroom, but America is on trial", Sharpton told the crowd. Proceedings are expected to last about a month.
The jury, including three alternates, is made up of six white women, three white men, three Black men, one Black woman and two multiracial women, according to court records.
The trial is significant, since it is uncommon for police officers to be penalised for using lethal force in the US. Two are immigrants to the United States. "At the time of George Mr Floyd's death, he talked about this as being an event that really opened up a wound in the American public".