The Minneapolis police officer in the car with the fellow patrolman who fatally shot an Australian woman said he was "startled by a loud sound" before the shooting, NBC News reported.
Officer Matthew Harrity spoke with investigators Tuesday about the incident. He "indicated that he was startled by a loud sound near the squad" and that Justin Ruszczyk then approached the car's driver's side window, according to investigators.
"Harrity indicated that Officer [Mohammed] Noor discharged his weapon, striking Ruszczyk through the open" window, investigators said, though the significance of the sound in the shooting was not clear.
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Ruszczyk, who had taken her fiance's last name of Damond, was fatally shot by Noor on Saturday night as he and Harrity responded to her 911 call about a possible assault near her home, authorities said. Noor has declined interviews at this time.