A Linkedin image obtained Monday, July 17, 2017, of Justine Damond. (AAP Image/Linkedin)
The US police officer charged with the murder of Australian life coach Justine Ruszczyk Damond appears set to claim self defence and plead not guilty.
Minneapolis police officer Mohamed Noor shot dead Ms Damond in a dark alley behind her home just before midnight on July 25.
Ms Damond, a former Sydneysider who moved to Minneapolis, called 911 after hearing a woman's screams.
When she approached Noor's police car in the alley he shot across his partner and out the vehicle's window, striking Ms Damond fatally.
The Minneapolis Tribune reported on Wednesday that Noor's lawyer, Thomas Plunkett, had filed documents in court indicating he intends to use self-defence and reasonable force in Noor's legal defence.
Noor was charged by prosecutors in March with third-degree murder and second-degree manslaughter.
He is scheduled to appear in court in Minneapolis on May 8.
© AAP 2018