The heartbroken fiancé of a Sydney woman says he has been given no information as to why police shot her dead near their Minneapolis home.
Justine Ruszczyk Damond was shot dead about 11.30pm local time on Saturday after two officers responded to a report of a possible assault.
Now the man she was supposed to marry next month said he has been completely left in the dark by authorities.
"Our hearts are broken," Don Damond said in an emotional press conference.
"As you know, it was her who called 911 on Saturday evening, reporting what she believed was an act of sexual assault occurring nearby.
"Sadly, family has been provided no additional information from law enforcement regarding what happened after police arrived.
"We have lost the dearest of people and we are desperate for information.
"It is difficult to fathom how to go forward without her."
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Thanking their friends and family in both Australiand and the US, Mr Damond said "piecing together her last moments before the homicide would be a small comfort" as they grieve.
"She was a teacher to so many and living a life of openness, love and kindness," he added.
The junior police officer who shot the 40-year-old has since been named as Mohamed Noor.
Officer Matthew Harrity was driving the car, however neither had their body cameras switched on.
It's believed Officer Noor reached over his partner and fired out the driver's window, fatally striking the Sydney 40-year-old, with suggestions he may have thought her phone was a gun.