He and his wife, Carole, were close friends of Damond when she moved to Minnesota. The officers did not have their body cameras turned on at the time, despite this being usual protocol.
Harrity has been with the police department for one year, Noor for roughly two years.
Justine Damond was killed Saturday night when approaching a police vehicle, after she had placed an emergency call reporting a possible rape taking place near her home in Minnesota. Harrity said Noor shot Damond through the open window.
Officer Matthew Harrity didn't escape criticism either, although not by name.
"I believe the actions in question go against who we are as a department, how we train and the expectations we have for our officers", Harteau said. "Nobody should ever speak to law enforcement when they're the subject of a criminal investigation". Bureau agents are asking that man, and any other potential witnesses, to come forward.
An Australian immigrant living in Minneapolis was shot dead by police after she placed a call to 911.
The police chief was told by Damond's fiance that people are scared to call 911 following the deadly incident, CBS News' Jamie Yuccas reports.
"I had to come out here and make sure you guys are okay", she said, joining the front of the march.
Many spoke out on social media, with Ms Harteau's statement on Facebook attracting calls for her to resign. But Plunkett said ongoing investigations prevented the officer from saying any more. Why was she killed?
Caller: Yes, along behind the house.
The Minnesota Bureau of Criminal Apprehension did not confirm the KSTP report.
The police department's internal affairs unit can compel Noor to give a statement as part of its own investigation, and fire him if he refuses, but that statement cannot be used against him in any criminal investigation, Friedberg said.
The BCA has confirmed that the 40-year-old Australian native was unarmed. Nearly 300 people gathered for the memorial.
Justine Ruszczyk, also known by her fiance's last name, Damond, was shot as she approached the officer's auto.
Once that happens, Hennepin County attorney Mike Freeman - not a grand jury - will decide whether either of the two officers involved should be charged in Ruszczyk's death.
He did not give any details about the shooting, however.
The loss of Ruszczyk has been felt by many, Damond said.
When Mohamed Noor joined the Minneapolis police force and was assigned to patrol the city's southwest corner, the Somali community there - the nation's largest - threw a party for him to celebrate. His lawyer has not responded to repeated requests for an interview, and efforts to reach Officer Noor directly have been unsuccessful.
Harteau said Noor had completed his training "very well" and was "very suited to be on the street", but she would continue to look into ways to enhance police training. Immediately afterward, Ruszczyk approached the driver's side window of the squad.
In her first public appearance since the Saturday night incident, Police Chief Janee Harteau admitted Ms Damond's death at the hands of a policeman had now made people scared to call 911 for help. She succumbed to a single gunshot wound to her abdomen.
"Justine didn't have to die ..." Her death was ruled a homicide.
"If he [officer Mohamed Noor] is charged and convicted, there's going to be a major uproar in this community because there's no video tape of that shooting, there is no bodycam video of that shooting that just happened with Justine Damond", Mr Webb said.