Updated

A former Minneapolis police officer on trial in the fatal shooting of an unarmed woman will be back on the stand Friday.

Mohamed Noor hadn't spoken publicly about the July 2017 death of Justine Ruszczyk Damond before taking the stand Thursday.

Damond, a dual U.S.-Australia citizen, had called 911 to report a possible sexual assault behind her home. She was shot minutes later when she approached Noor's squad car.

Noor testified Thursday that he and his partner were startled by a loud bang on their car. He said he saw a woman in a pink shirt with blond hair at his partner's window, raising her right arm, and fired his gun "to stop the threat."

He said his "world came crashing down" when he realized he'd shot an innocent woman.

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Check out the AP's complete coverage of Mohamed Noor's trial