This courtroom sketch provided by Cedric Hohnstadt depicts the opening argument by Hennepin County prosecutor Patrick Lofton, standing, Tuesday, April 9, 2019, in Minneapolis, during the murder trial of former Minneapolis police Officer Mohamed Noor, second from right, who fatally shot an unarmed Australian woman, Justine Ruszczyk Damond, in July 2017, after she called 911 to report a possible sexual assault behind her home. Also depicted are Hennepin County District Judge Kathryn Quaintance, left; Amy Sweasy, assistant Hennepin County attorney, bottom left; and Noor's defense team of Peter Wold, right, and Thomas Plunkett. (Cedric Hohnstadt via AP)

MINNEAPOLIS (AP) — A woman who was shot by a Minneapolis police officer responding to her 911 call about a possible sexual assault near her home lost so much blood from her single wound that she might not have been saved even if she had gotten quicker medical help, a medical examiner testified Wednesday.

Justine Ruszczyk Damond was hit in the iliac artery, a key artery in the abdomen, by the single shot from Mohamed Noor, now on trial on murder and manslaughter charges in the July 2017 death of the dual citizen of the U.S. and Australia.

Hennepin County assistant medical examiner Lorren Jackson said 1.6 liters of blood were found in Damond's abdominal cavity. Noor and his partner tried unsuccessfully to resuscitate Damond right after the shooting.

"With that kind of blood loss, even very quick help might not be enough," Jackson testified.

Noor shot Damond in an alley behind her home in July 2017 when Damond — unarmed, barefoot and wearing pajamas — approached the police SUV where he and his partner were seated. Noor's attorneys say he was protecting his partner and himself from what he perceived to be a possible ambush.

Attorneys for Noor, who was fired after being charged and has never talked to investigators about what happened, argued during opening statements Monday that he used reasonable force to defend himself and his partner from a perceived threat. Noor's partner that night, Matthew Harrity, told investigators he heard a thump right before the shooting that startled him.

But prosecutors say there is no evidence he faced a threat that justified deadly force.

Tuesday's testimony included the display of the pajamas Damond was wearing. Prosecutor Patrick Lofton displayed her pink T-shirt — stained with blood and cut by emergency workers rendering aid.

Prosecutors' plans to introduce body camera video showing the aftermath of the shooting were stalled when Plunkett moved to exclude the footage, arguing it would be prejudicial to his client. The footage doesn't capture the shooting itself because officers turned them on only afterward. It shows the officers' attempts to save Damond.

Judge Kathryn Quaintance agreed to hold off on the footage until she has time to review case law.

Damond, 40, was a life coach who was engaged to be married the month after her death. Noor, 33, is a Somali American whose arrival on the force just a couple of years earlier had been trumpeted by city leaders working to diversify the police force.

Noor's attorneys have not said whether he will testify.

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Follow Amy Forliti on Twitter: http://www.twitter.com/amyforliti

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Check out the AP's complete coverage of Mohamed Noor's trial.

Former Minneapolis police officer Mohamed Noor, center, is accompanied by his attorneys Peter Wold, not pictured, and Thomas Plunkett, right, as he walks towards the Hennepin County Government Center for opening arguments of his trial Tuesday, April 9, 2019, in Minneapolis, Minn. Opening arguments scheduled to begin in the trial of former Minneapolis police officer Mohamed Noor in the shooting death of Justine Ruszczyk Damond.  (David Joles/Star Tribune via AP)
Former Minneapolis police officer Mohamed Noor, center, is accompanied by his attorneys Peter Wold, not pictured, and Thomas Plunkett, right, as he walks towards the Hennepin County Government Center for opening arguments of his trial Tuesday, April 9, 2019, in Minneapolis Opening arguments scheduled to begin in the trial of former Minneapolis police officer Mohamed Noor in the shooting death of Justine Ruszczyk Damond.  (David Joles/Star Tribune via AP)
CORRECTS THAT DON DAMOND WAS JUSTINE RUSZCZYK'S FIANCE, NOT HUSBAND AND THAT ZACH DAMOND IS NOT RUSZCZYK'S SON - Media members approach Don Damond, the fiance of Justine Ruszczyk Damond, second from right, and Zach Damond, right, Don Damond's son, as they arrive for the opening arguments in the trial of former Minneapolis police officer Mohamed Noor at the Hennepin County Government Center for Tuesday, April 9, 2019, in Minneapolis. (David Joles/Star Tribune via AP)
Former Minneapolis police officer Mohamed Noor, back left, is shielded by his attorneys Peter Wold, left, and Thomas Plunkett, right, as he walks towards the Hennepin County Government Center for opening arguments of his trial Tuesday, April 9, 2019, in Minneapolis, Minn. (David Joles/Star Tribune via AP)
FILE - In this July 23, 2018, file photo, posters of Justine Ruszczyk Damond are displayed at a news conference by attorneys for her family in Minneapolis. The judge overseeing the trial of a former Minneapolis police officer Mohamed Noor who fatally shot the unarmed Australian Ruszczyk Damond, is restricting media and public access. Thirty-three-year-old Noor goes on trial Monday in the July 2017 death of Ruszcyzyk Damond. Judge Kathryn Quaintance ruled Friday, March 29, 2019, that potentially graphic evidence would be seen only by the jury, not the public or media. One media attorney says her ruling could be unconstitutional. (AP Photo/Amy Forliti, File)
A Minneapolis police officer shot and killed an unarmed woman who approached his squad car.;
This courtroom sketch provided by Cedric Hohnstadt depicts the opening argument by defense attorney Peter Wold, right, Tuesday, April 9, 2019, in Minneapolis, during the murder trial of his client, former Minneapolis police Officer Mohamed Noor. Noor fatally shot an unarmed Australian woman, Justine Ruszczyk Damond, in July 2017, after she called 911 to report a possible sexual assault behind her home. Also depicted is Hennepin County District Judge Kathryn Quaintance. (Cedric Hohnstadt via AP)
This courtroom sketch provided by Cedric Hohnstadt depicts prosecution witness Don Damond, Justine Ruszczyk Damond's fiance, Tuesday, April 9, 2019, in Minneapolis, during the murder trial of former Minneapolis police Officer Mohamed Noor, who fatally shot an unarmed Ruszczyk Damond, in July 2017, after she called 911 to report a possible sexual assault behind her home. (Cedric Hohnstadt via AP)
Former Minneapolis police officer Mohamed Noor, back left, is shielded by his attorneys Peter Wold, left, and Thomas Plunkett, right, as he walks towards the Hennepin County Government Center for opening arguments of his trial Tuesday, April 9, 2019, in Minneapolis, Minn. (David Joles/Star Tribune via AP)
This courtroom sketch provided by Cedric Hohnstadt depicts the opening argument by defense attorney Peter Wold, right, Tuesday, April 9, 2019, in Minneapolis, during the murder trial of his client, former Minneapolis police Officer Mohamed Noor. Noor fatally shot an unarmed Australian woman, Justine Ruszczyk Damond, in July 2017, after she called 911 to report a possible sexual assault behind her home. Also depicted is Hennepin County District Judge Kathryn Quaintance. (Cedric Hohnstadt via AP)