MINNEAPOLIS (AP) — Minneapolis Mayor Jacob Frey said the city is working to pair new police officers with “the right individuals” for field training following George Floyd’s death, in which a senior officer rejected a younger colleague’s question about how Floyd was being restrained.

In an interview with The Associated Press, Frey said the city wants to make sure that the training new officers get isn’t undermined once they go into the field.

“We need to make sure that those who are in a supervisory role, those that are riding with new officers with new cadets, are the right individuals to be role models,” Frey said. “You learn from who your role models are, and that can be a good thing and that can also be a bad thing.”

Floyd, a 47-year-old Black man who was in handcuffs, died May 25 after Officer Derek Chauvin pressed his knee against Floyd’s neck for nearly eight minutes as Floyd pleaded for air. Chauvin, who is white, is charged with second-degree murder. Three other officers who were at the scene — Thomas Lane, Tou Thao and J. Kueng — are charged with aiding and abetting.

Attorneys for Lane and Kueng have portrayed the two officers as rookies who deferred to the far more senior Chauvin. Body camera video shows as Floyd repeatedly said he couldn’t breathe, Lane asked Chauvin whether the officers should turn Floyd from his stomach to his side. Chauvin responded that they would keep Floyd as he was.

The police department has been under significant pressure to change its practices since Floyd’s death, with a majority of City Council members in favor of eliminating the department entirely and replacing it with a new public safety unit. The city’s charter commission is expected to vote today on whether to advance a proposal that could ultimately send the idea to voters in November.

Frey told the AP that he remains opposed to the idea.

“We should not go down the route of simply abolishing the police department,” Frey said. “What we need to see within this department, and within many departments throughout the country, is a full-on culture shift.”