In the nearly two years since Damond's death, authorities have failed to identify the source of the noise that led the Australian woman to call 911 before she was shot, an investigator with the county attorney's office testified Wednesday afternoon.
"When I first learned of the case, there were some questions," said the investigator, Nancy Dunlap, who homed in on the sound of a woman screaming that aroused Damond's suspicions that a sexual assault was occurring behind her Fulton neighborhood home. She felt it was important because "this person could be a witness to what happened," Dunlap said.
"Were the BCA (state Bureau of Criminal Apprehension) and the MPD (Minneapolis Police Department) looking for this woman?" asked prosecutor Patrick Lofton.
"No, they were not," Dunlap said.
The veteran investigator joined the Hennepin County Attorney's Office from a 30-year career with Minneapolis police. During her time as an officer, she investigated at three separate officer-involved shootings.
Dunlap testified that she also went door-to-door to ask Damond's neighbors whether they had dogs, whose barking and whining might explain the noises that Damond heard.
In preparing the case, Dunlap testified that that she pored through hundreds of phone records, witness statements, scanner radio transmissions, surveillance videos and body-worn camera footage. She also reviewed all calls for service, both for the 5th Precinct and citywide, focusing on robberies, assaults and any calls "that could generate any type of noise."
Recognizing that sometimes victims of sexual assault don't report the crimes to police, Dunlap testified that she also checked in with officials at Hennepin County Medical Center about whether any recent cases fit that description. She was told that none did.
One of the calls that caught her attention was one involving a potentially mentally unstable woman was spotted wandering around the area earlier that night. The episode was described in detail on Wednesday morning by a woman who lived in the neighborhood and who called police three times to report the other woman's erratic behavior.
The chronology shown to jurors showed that about 30 minutes after the last of those calls, Noor and Harrity "self-assigned themselves" to the call, while they were in the area of 48th and Xerxes avenues S., according to their squad's GPS system.
After driving through the area and asking dispatchers about the 911 caller's whereabouts, the officers declared the call "Code 4," meaning that they hadn't found the woman. After driving back to precinct headquarters for dinner, they went back on duty at 11:12 p.m., Dunlap testified. About 15 minutes later, Damond called 911 for the first time, to report that she had heard "sex sounds" and the voice of a woman apparently in distress in the alley behind her home.
Damond would call back about seven minutes and 40 seconds later, at 11:35 p.m., to check on the responding squads' status.
Two minutes after that, Noor indicated on his in-squad computer that the officers had arrived to the scene; their GPS system showed them driving through the alley about eight miles an hour, before declaring the scene "Code 4" before they reached the end of the alley.
Dunlap testified that based on her best guess, the fatal shot was fired in a 14-second interval between 11:40:15 and 11:40:29, when Harrity first turned on his body camera.
About 13 seconds after that, a teenage passerby began recording the scene on his cellphone.
Dunlap's investigation showed that Noor and Harrity responded to 12 separate calls for service that night — including two related to the shooting — during their shift, ranging from a call involving an "emotionally-disturbed person" at a nearby senior living facility.
Noor, Dunlap testified, activated his body worn camera on half of those calls, while Harrity never turned his recording device on, until after Damond was shot.
The two officers had worked in the same squad together at least 35 times since Harrity moved to the precinct in December 2016; Noor was assigned there in May of that year.
Testimony resumes at 9:15 a.m. Thursday.
Flanked by his lawyers, Peter Wold, left, and Thomas Plunkett, right, former Minneapolis police officer Mohamed Noor made his way into court as testimony continues in the murder trial in the fatal shooting of Justine Damond . (Star Tribune/The Minnesota Star Tribune)