The fiance of an Australian woman who died at the hands of Minnesota police said he and her family have been given almost no information about what happened.
Justine Damond, a meditation teacher and bride-to-be was reportedly killed by an officer who fired from the passenger seat as the woman stood outside the driver's door.
Don Damond said today Ms Damond had called 911 on Saturday night (local time) to report what she thought was an active sexual assault occurring nearby.
Ms Damond was then allegedly shot to death by one of the responding officers.
"We've lost the dearest of people, and we're desperate for information," Mr Damond said.
"Our hearts are broken and we are utterly devastated by the loss of Justine."
"Piecing together Justine's last moments before the homicide would be a small comfort as we grieve this tragedy."
There were no known witnesses other than the two officers in the squad car that showed up. A newspaper report said Ms Damond was shot while standing alongside the car in her pajamas.
The shooting is being investigated by Minnesota's state investigative agency.