Justine Damond's father, John Ruszczyk, choked back tears as he spoke of his 40-year-old daughter, whom he described as being "ripped from our arms" when she was killed in Minneapolis, Minnesota, on 15 July.
Johanna Morrow plays the didgeridoo during a memorial service for Damond at Lake Harriet in Minneapolis on Friday..
Those attending are encouraged to honor Justine Damond by wearing blue, one of her favorite colors. "And I have vast gratitude for being the one she chose".
Damond had moved to the area to be with her fiance Don Damond, who said Friday that it "felt like a privilege to love Justine".
An Australian flag stood prominently on the stage next to a large colour photo of Damond bordered in pink and white flowers.
Damond was engaged to be married in August.
During a visit to Minneapolis, where Ms Damond was shot, Mr Ruszczyk said: "We should be walking down the street smiling and laughing, But now every step on the foot path is very painful".
Program from Justine Damond public memorial
"We've lost the dearest of people and we're desperate for information", says Don Damond, the fiance of Justine Damond who was fatally shot by USA police.
Don Damond hugs a neighbour after reading a statement about his fiance, Justine Damond who was fatally shot by Minneapolis police.
Noor's partner, Officer Matthew Harrity, told investigators a noise startled him just before Ms Damond approached their police SUV. Noor was in the passenger seat and shot Damond through the open driver-side window.
An Australian woman shot and killed by a Minneapolis police officer responding to her 911 call will be remembered at a public memorial at a lake near her home.
Another attendee, Rosie McGowan, said Ms Damond, a qualified vet who was to marry this month, would have asked those at the memorial "why are you guys being so serious?". Harrity was interviewed by the agency but Noor declined and, under state law, can not be compelled to be interviewed.
Damond says the same sense of love and duty that led her to climb down a sewer to rescue baby ducks also sent Ruszczyk into the alley behind their home late at night on July 15; she wanted to help someone she thought was being sexually assaulted.
It will end with a silent and solemn walk around Lake Harriet.