Kim Potter is testifying in her own defense about the April 11, 2021, events that led to the death of Daunte Wright, who she shot and killed during a traffic stop. She is charged with first-degree manslaughter and second-degree manslaughter. The defense said Potter meant to use her Taser on Wright but instead grabbed her firearm when she shot him in the driver's seat of his car, a mistake her lawyers call an "action error."

The defense has maintained that Potter was within her rights to use deadly force on Wright since he could have hurt or killed another officer with his car.

Minnesota Gov. Tim Walz announced that he is preparing the Minnesota National Guard to provide public safety assistance if necessary during Kim Potter's trial, as requested by Hennepin County and the city of Brooklyn Center.

"Out of an abundance of caution, we are prepared to ask members of the Minnesota National Guard to be available to support local law enforcement with the mission of allowing for peaceful demonstrations, keeping the peace, and ensuring public safety," Walz said in a statement Wednesday evening.

A press release from Walz's press office stated that, "at this time, the Minnesota National Guard will not be proactively assuming posts throughout the Twin Cities." Guard members will only operate in support of local law enforcement "should they be needed," according to the press release.

New body-worn camera footage played in the courtroom while the prosecution questioned Brooklyn Center officer Anthony Luckey showed the moments after Kim Potter shot Daunte Wright.

In the video, taken from Luckey's body-worn camera, Potter can be seen falling to the curb.

"Oh my God, oh my God, oh my God," she said, before hyperventilating for several minutes with her face buried in the grass.

Luckey's and Sgt. Mychal Johnson's arms can be seen reaching down to Potter.

"Just breathe," Luckey can be heard saying.

"I'm going to go to prison," Potter said.

"No, you're not," Luckey said.

"Kim, that guy was trying to take off with me in the car!" Johnson said in the video.

Potter then sat up on the grass and repeatedly said, "Oh my God," as her colleagues waved traffic by and discussed shutting down the street.

Court has wrapped for the day and will resume at 9 a.m. local time Thursday.

-ABC News' Sasha Pezenik

Brooklyn Center officer Anthony Luckey said during his testimony that he was to the right of Kim Potter when she fatally shot Daunte Wright.

He said he was holding on to Wright when he heard Potter yell "Taser," several times.

"It was pretty much some intense thing when it happened," Luckey said. "When she yelled, 'Taser, Taser,' that's when I went back into the vehicle, realized that she said 'Taser, Taser' and right when I pulled back, that's when the round went off."

Then, he said he saw the flash of a gun and heard the bang. He said he was hit with a projectile.

Luckey said he did not know whose gun had gone off initially, but said he knew it wasn't a shot fired by Wright.

"I just knew that it wasn't Daunte's because I was able to see his hands," Luckey said.