The trial of former Minneapolis police officer Derek Chauvin started in earnest Monday, March 29, with opening statements given and the jury being sworn in.

Jerry Blackwell of the prosecution team showed a diagram of the scene outside Cup Foods last May and the jury was walked through bystander video of George Floyd under Chauvin's knee. The jury and the world watching through live feeds were given the first public viewing of surveillance video that showed the incident from a different angle.

The first prosecution witness on the stand was Jena Scurry, a 911 dispatcher for the city of Minneapolis. The prosecution went over the dispatch call log of the incident and we learned that Scurry was able to see part of it live through a system of cameras that the city deploys in high-call areas.

Stills from the surveillance video showed officers attempting to restrain Floyd in the back of a squad car and then bringing him to the ground and kneeling on top of him. 911 dispatcher Scurry said she grew concerned with how long officers were kneeling on Floyd. She said she was so disturbed that she called the sergeant on duty to alert them.

"You can call me a snitch if you want to," Scurry said on the call to the sergeant to report the officers kneeling on Floyd.

The state's next witness was a woman named Alisha Oyler, 23, who is originally from Arizona and used to work at the Speedway store at 38th & Chicago.

Oyler said she was working there when she saw police "messing" with someone, later finding out it was Floyd, saying she'd never met him before. She was nervous on the witness stand and said she had to try and avoid cursing when describing the interaction.

The prosecution led Oyler through a series of videos she recorded of officers across the street as she worked. At one point that night, Oyler stepped out of the store and recorded video as officers remained atop Floyd and the crowd grew around them.

Oyler said that after recording, she went back to work. When she went home, she recorded another video of crime scene tape up at the scene across the street.

Next, Minnesota Assistant Attorney General Matthew Frank called witness Donald Williams, who is an MMA fighter, entrepreneur and former security guard. He was in the area at the time and was in the crowd of bystanders asking for officers to get off of Floyd and to check his pulse.

Williams was on the way back from fishing at the lake with his son when he stopped by Cup Foods. He said former officer Tou Thao acted as "the dictator" at the scene, "controlled" people near the curb and was the one who "let it go on."

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Williams says he told officers they were performing a dangerous "blood choke" and that Floyd was in obvious distress. Floyd started to "slowly fade away like a fish in a bag," Williams testified, that his eyes rolled in the back of his head and his nose started bleeding.

He said Thao told bystanders at the scene that, "this is what drugs do to you," which Williams said angered him more.

Judge Peter Cahill at one point asked Williams to limit his technical descriptions of the techniques being used by the officers in the bystander video being reviewed. As Williams was continuing, there was a "major technical glitch" and the jury was dismissed for the day. Williams will return to take the stand Tuesday, Cahill said, warning the jurors as they exited: "Don't watch the news.”

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