Damond is believed to have been living in the USA for at least the past three years.
Julia Reed, who has known Ms Damond for 32 years, said her friend had brought intelligence and joy to life.
Justine Damond, a qualified vet and yoga instructor, was remembered as an "angel on earth" and "a guiding light" by loved ones.
The 40-year-old's family and wide network of friends on Sydney's northern beaches have been left reeling.
"There is no way to convey the amount of goodness that was in her", close friend Eloise King said on Monday.
Late last night, an officer-involved shooting occurred in the 13th ward, following a 911 call that two Minneapolis police officers responded to on the 5100 block of Washburn Avenue South.
A Minneapolis yoga teacher who called police Saturday night to report a disturbance near her house was fatally shot by an officer who, according to eyewitness reports, didn't even get out of the auto.
"Basically my mom is dead because a police officer shot her for reasons I don't know, and I demand answers", Her Step son Zach Damond said. Exact details haven't been released, but officials say an officer at some point fired a gun, killing the woman.
All Minneapolis police officers have worn body cameras since the end of 2016, according to the city, a policy decision that was announced in July 2016, same month a black motorist named Philando Castile was fatally shot by a police officer in the Twin Cities area.
"My understanding, from the BCA's initial statement, is that the officers' body cameras were not turned on at the time of the incident and the squad camera did not capture the incident", Hodges said in a statement earlier Sunday.
Justine was preparing to marry Don, and the well-liked woman began to use the name Justine Damond.
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She ran her meditation workshops at the Lake Harriet Spiritual Community, which paid tribute in a Facebook post.
'This is a very hard time for our family, ' the statement said.
In Sydney, members of the Ruszczyk family said they were trying to come to terms with the tragedy "and to understand why this has happened". "Now a force even more powerful than before, may your handsome light shine through the darkness", they wrote in a post.
"I share the same questions other people have about why we don't have body cam footage of it, and I hope to get answers to that in the days coming", Hodges said.
"She was just infectious, not just for me".
At this stage it appears that not only was the female who was shot unarmed she was the only person in the laneway at the time.
"She was loving, giving, smart, amusing and caring".
According to her website, Damond moved to Minneapolis from Sydney, Australia. "This is unacceptable", Gross told the crowd.
The former Manly High School student was a qualified veterinarian, and taught meditation and life coaching.
He is reported to have been away on a business trip when she died.