She had already begun using his name professionally.
Sources say Damond walked outside in her pajamas when two officers arrived on the scene in a police vehicle.
The Australian Department of Foreign Affairs (DFAT) has confirmed the death this morning AEST time.
- The Minnesota Bureau of Criminal Apprehension is continuing to investigate the fatal shooting of an Australian woman by a police officer in southwest Minneapolis Saturday night.
Damond and her fiancé lived in the 5000 block of Washburn, neighbors told the StarTribune.
"Justine was one of the most loving people you would ever meet".
Ms Damond spent some of her early childhood years in the Buffalo area of NY.
Ms Damond's soon-to-be stepson, Zach Damond, said he is desperate for answers.
The woman was to be married to Mr Damond, 50, in August, a family friend said.
"Our lives are forever changed as a result of knowing her", he said. "It is hard to fathom how to go forward without her in my life".
"Every officer who is responding to 911 calls is wearing a body camera", she told CBS News.
"I mean ask anybody here, they're shocked", said a student of Damond's, Corey Birkholz, who was amongst the 200 who gathered at a vigil to commemorate their teacher. Don returned from a business trip on Sunday.
The Hennepin County Medical Examiner's Office says Justine Damond died of a gunshot wound to the abdomen and the manner of death is a homicide.
Here's the police report from the Minneapolis Police. The officer in the passenger seat pulled his gun and shot Damond through the driver's side door, sources said.
"This woman was a lovely light, she was a healer".