Updated at 2:15 p.m.: Revised to reflect that court adjourned for the day.

The prosecution rested Thursday in Amber Guyger's murder case, but not before contrasting the lifesaving efforts of first responders trying to revive Botham Jean with Guyger: texting on her phone in a spotless uniform.

"What you guys did was exceptionally heroic," lead prosecutor Jason Hermus told Dallas Officer Tu Nguyen, one of the first officers at the scene of last September's shooting at the South Side Flats apartments.

Watch Friday's testimony from our partners at KXAS-TV (NBC5):

Police Officer Tu Nguyen waits as defense attorney Toby Shook (left) and Assistant District Attorney Jason Hermus (right) discuss evidence photos during the murder trial of Amber Guyger on Thursday. (Tom Fox / Staff Photographer)

Guyger, 31, was off duty but still in her Dallas police uniform Sept. 6, 2018, when she fatally shot her upstairs neighbor in his apartment near downtown.

Her defense has said she made an "awful and tragic, but innocent" mistake, saying she confused Jean's apartment for her own after parking on the wrong floor of the garage at the complex.

Jurors again watched body camera video Thursday showing officers trying to revive Jean after he was shot in his Dallas apartment as he ate a bowl of ice cream and got ready to watch football.

In the aftermath of the shooting, the footage from Nguyen's body cam shows the officer raising Jean's feet onto a pillow to move the blood back to his heart. By then he was going into shock because his heart had been torn apart by the bullet.

Hermus asked Nguyen what Jean's "condition of life" was at that point.

"It was faint," the officer responded.

Hermus zeroed in on the placement of Jean's sandals, a focus for much of the trial because defense attorneys say they show Jean's close proximity to Guyger when she fired. Prosecutors, on the other hand, argue the shoes were moved while officers tended to the dying man and can't be relied on as evidence.

Nguyen testified that he moved the sandals away from Jean and toward the door closer to where Guyger was when she fired. He said he moved one shoe just a little and the other farther away because it was between Jean's legs.

Hermus told Nguyen that asking about items moved in the apartment wasn't a criticism. The prosecutor didn't want the officer to think he'd done anything wrong.

Read more: Local activists call for re-investigating fatal shooting involving Amber Guyger's former police partner

The defense wants to show that Guyger was reasonable — though ultimately wrong — in her belief that Jean was an intruder and her life was in danger when she shot him. They want to prove Jean was as near to Guyger when she shot him as they can.

But state District Judge Tammy Kemp has not allowed testimony suggesting that Jean's sandals show where he was when he was shot because they were moved.

Testimony Thursday from Texas Ranger Michael Adcock showed Jean's body was 13 to 15 feet from the door.

1 / 2Below an image of fired Dallas police Officer Amber Guyger, Texas Ranger Michael Adcock testifies on the witness stand as he's cross examined by defense attorney Robert Rogers (right) in the 204th District Court at the Frank Crowley Courts Building in Dallas, Thursday, September 26, 2019. (Tom Fox / Staff Photographer) 2 / 2A 3-D laser scan of Botham Jean's apartment shows the path of the non-lethal shot taken by Amber Guyger. The bullet hit the wall of his apartment (left). Texas Ranger Michael Adcock made the laser scan of the apartment and testified in the 204th District Court at the Frank Crowley Courts Building in Dallas, Thursday, September 26, 2019. (Tom Fox / Staff Photographer)

Adcock also testified that chemical testing showed Guyger had no blood on her uniform. Blue latex gloves in her pocket also showed no signs of blood and appeared to be unused, the Ranger said.

Guyger's arrest warrant affidavit says she performed CPR on Jean, but the prosecution noted the lack of blood on her uniform and showed the jury photos of Guyger in the hallway texting on her phone while police officers performed CPR inside the apartment.

Jurors also got a glimpse inside Guyger's apartment Thursday, as prosecutors tried to show clear differences between her apartment and Jean's.

Hermus called on a Dallas police detective and Rangers to testify, showing the jury photos and videos that each official took of Guyger's apartment during their investigation of the shooting.

The prosecutor had Detective Stephen Cleary dissect photos he took of his path to Guyger's apartment on the third floor and noted she didn't have a red doormat like Jean's.

Hermus noted a difference in Guyger's television size, a lack of wall art behind her couch and a lack of a living room rug as a few examples of differences in Guyger's apartment.

He also pointed out an empty space in Guyger's living room where Jean's ottoman was positioned in the apartment above hers.

"Do you see a large round ottoman anywhere in this photograph?" Hermus asked the detective.

"No, sir. I do not," Cleary replied.

1 / 6Dallas County crime lab supervisor April Kendrick watches as Assistant District Attorney Jason Hermus asked questions about Amber Guyger's 9mm service gun as she testified, Thursday, September 26, 2019. (Tom Fox / Staff Photographer) 2 / 6Dallas County Crime Lab supervisor April Kendrick examines the 9mm shell casings discharged from Amber Guyger's handgun as she testified, Thursday, September 26, 2019.(Tom Fox / Staff Photographer) 3 / 6Dallas County District Attorney criminal investigator Michael Grice (right) shows Assistant District Attorney Jason Hermus (left) Botham Jean's front door mat he acquired through a court order. (Tom Fox / Staff Photographer) 4 / 6Fired Dallas police Officer Amber Guyger visits with her attorney Zach Horn (left) during a break in her murder trial in the 204th District Court at the Frank Crowley Courts Building in Dallas, Thursday, September 26, 2019. (Tom Fox / Staff Photographer) 5 / 6Assistant District Attorney Jason Hermus (right) questions Texas Ranger Michael Stoner on the witness stand during the morning session. Fired Dallas police Officer Amber Guyger is facing a murder charge in the 204th District Court at the Frank Crowley Courts Building in Dallas, Thursday, September 26, 2019. (Tom Fox / Staff Photographer) 6 / 6Dallas police officer Tu Nguyen is questioned by Assistant District Attorney Jason Hermus (left) as his body camera video inside Botham Jean's apartment was shown in the 204th District Court at the Frank Crowley Courts Building in Dallas, Thursday, September 26, 2019. (Tom Fox / Staff Photographer)

Robert Rogers, one of Guyger's attorneys, questioned each official about the similarities of each floor during cross-examination. He asked the detective whether there were noticeable visual indicators that would have made it obvious for the detective to tell which floor he was on in the apartment hallways, and Cleary said there weren't any.

On Tuesday and Wednesday, jurors heard from Texas Ranger David Armstrong, who testified that it was a common occurrence for residents of the complex to get confused, especially on the third and fourth floors where Guyger and Jean lived.

As the lead investigator for the shooting, Armstrong led a team that interviewed 297 of the apartment's 349 residents. Of those, Armstrong testified, 46 of them had walked to the wrong floor and put their key in the door, as Guyger did.

Read more: Police treated Amber Guyger special on night of shooting, prosecutor argues

Outside the presence of the jury, Armstrong said he didn't believe that Guyger committed a crime when she shot Jean. He was the law enforcement officer who got a manslaughter arrest warrant for Guyger before she was later indicted on the murder charge she is being tried on.

Kemp didn't allow Armstrong to testify about his opinion before jurors after Hermus argued that jurors, not the Ranger, were the ultimate judges in the case.

Guyger's defense team will begin calling witnesses at 8:30 Friday morning.

During opening statements, one of Guyger's attorneys said jurors would hear from the former officer herself during the trial. It's unclear when Guyger would take the stand to testify.

Read more about Botham Jean and Amber Guyger.

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