An Australian woman living in Minnesota was shot dead by police when she called to report a disturbance near her home.
Justine Ruszczyk called police to the home she shared with her fiancé, who she was due to marry next month, at 11:30pm on Saturday night.
The 40-year-old died when police opened fire.
Minneapolis police are investigating, but their work has been hampered because the officers’ body cameras were switched off. The police department said the squad car's camera also failed to capture the incident.
The officer who fired the fatal shots was named on Monday as Mohamed Noor, who became the Minneapolis police department’s first Somali-American officer when he joined in March 2015.
Tom Plunkett, his lawyer, confirmed his client fired his weapon, according to CBS Minnesota.
“We take this seriously with great compassion for all persons who are being touched by this,” said Mr Plunkett.
Local news in Minnestota reported that Mr Noor was seated in the passenger seat and his partner in the driver’s seat when he opened fire, hitting her multiple times.
He and his partner have been placed on administrative leave.
Zach Damond, her fiance’s son, she had called the police after hearing a noise near her home.
“My mum is dead, because a police officer shot her, for reasons I don’t know, and I demand answers” he said in a tearful Facebook Live video.
"I guess she thought that something bad was happening and, next thing I know, they take my best friend’s life."
Miss Ruszczyk was born in Sydney but moved to the US about three years ago to be with her fiancé, Don.
The Australian reported that she hated America’s gun culture, but made the move to be with the American businessman she called the “handsome, hilarious, rockstar love of my life”.
Mr Damond, 50, was returning from a business trip and was being picked up by his son Zach when the shooting occurred.
“She heard a sound in the alley so she called police and the cops showed up,” Zach said.
“Basically my mum’s dead because a police officer shot her for reasons I don’t know ... I demand answers. If anybody can help, just call police and demand answers. I’m so done with all this violence.”
Mr Damond said he and her family have been given almost no information about what happened.
He said his fiancee had called 911 on Saturday night to report what she thought was an active sexual assault occurring nearby.
Mr Damond said he and the family were "desperate for information."
"Piecing together Justine's last moments" would be "a small comfort," he said.
She worked as a “spiritual healer”, and running meditation workshops at the Lake Harriet Spiritual Community, which in a Facebook post called her "one of the most loving people you would ever meet."
The Australian Department of Foreign Affairs and Trade said they were "providing consular assistance to the family of an Australian woman who died in a shooting in Minneapolis," but did not comment further.
They also put out a brief statement on behalf of the woman's family.
"This is a very difficult time for our family,” they said. “We are trying to come to terms with this tragedy and to understand why this has happened."
Betsy Hodges, mayor of Minneapolis, said she was “heartsick and deeply disturbed” by her death.
“My thoughts are now with everyone affected by this tragic incident, especially the deceased woman and her family.
“The City will continue to provide updated information on this incident, and the BCA’s investigation, as soon as we have it."
Last July, a suburban Minneapolis police officer fatally shot a black man during a traffic stop, with the killing live-streamed on Facebook.
Officer Jeronimo Yanez shot school cafeteria worker and licenced gun owner Philando Castile, 32, in front of his girlfriend and her young daughter, sparking outcry and protests.
Last month Mr Yanez was found not guilty of manslaughter and other charges for killing Castile. He left the force after being given a $48,500 pay out, which prompted further outrage.