Breonna Taylor’s family on Friday assailed the decision not to prosecute any Louisville officers for shooting her, while their attorneys demanded that grand jury details be made public to reveal more about how this conclusion was reached.

Their remarks came in an emotional news conference in Jefferson Square Park, which has become a hub of the protests since police shot and killed Taylor while serving a warrant at her apartment in March. Taylor’s family spoke near a mural dedicated to the 26-year-old emergency room technician.

On Wednesday, Kentucky Attorney General Daniel Cameron (R) said the two officers who shot Taylor were justified because her boyfriend fired at them first. A third officer was indicted by a grand jury for firing into an apartment near that of Taylor.

Speaker after speaker pilloried that outcome Friday, repeatedly criticizing Cameron, the police force and the country’s justice system, which Tamika Palmer, Taylor’s mother, described as fundamentally not set up to protect people of color in the United States.

“It’s clear that that is the way they will always see us,” Palmer said in a statement which was read aloud at the news conference by her sister, Bianca Austin. “I was reassured Wednesday of why I had no faith in the legal system, in the police, in the law. . . . The system as a whole has failed her.”

Benjamin Crump, an attorney for Taylor’s family, demanded the release of grand jury transcripts in the case, calling for Cameron to make plain what he did and did not present to them this week and leading the crowd in a chant echoing that plea.

“Did he present any evidence on Breonna Taylor's behalf?” Crump said. “Or did he make a unilateral decision to put his thumb on the scales of justice to help try to exonerate and justify the killing of Breonna Taylor by these police officers?"

Crump said, “If you want us to accept the results, then release the transcript.”

Cameron had said Wednesday that he was not releasing the full grand jury report because of both the ongoing criminal case and an FBI investigation into the case. Elizabeth Kuhn, a spokeswoman for Cameron, said Friday that he “understands that the family of Ms. Breonna Taylor is in an incredible amount of pain and anguish” and that the grand jury’s result “was not what they had hoped.”

“Regarding today’s statements at the press conference, everyone is entitled to their opinion, but prosecutors and Grand Jury members are bound by the facts and by the law,” Kuhn said in a statement. “Attorney General Cameron is committed to doing everything he can to ensure the integrity of the prosecution before him and continue fulfilling his ethical obligations both as a prosecutor and as a partner in the ongoing federal investigation.”

Gov. Andy Beshear (D), who preceded Cameron as the state’s attorney general, has also called on him to release whatever he can from the investigation without interfering with the criminal case against the officer charged this week.

Taylor’s mother, in her statement read aloud Friday by her sister, said she had hoped Cameron “knew he had the power to do the right thing” in the case. “That he had the power to start the healing of this city,” she said.

“What he helped me realize is that it will always be us against them,” Palmer wrote in her remarks. “That we are never safe when it comes to them.”

As her sister read her remarks, Palmer stood nearby, kneading her hands as some of those gathered around comforted her. At one point, one of them reached out to wipe tears from Palmer’s eyes. Palmer also leaned her head onto Crump’s shoulder and sobbed at another moment.

Palmer wrote that she knew speaking about her feelings would make her labeled “an angry Black woman,” saying she was angry about Black people dying at the hands of police officers.

While Taylor’s family and their attorneys spoke, voices in the crowd shouted out “a sham,” “dog and pony show” and “kangaroo court.” They were surrounded by signs bearing messages including, “No lives matter until black lives matter” and “No justice no peace.” People were also wearing masks bearing Taylor’s name.

Another speaker, Tamika Mallory, co-founder of the group Until Freedom, spoke blisteringly about Cameron, describing him as “a coward” and “a sellout” for his actions.

“He protected the police,” she said.

Cameron, a 34-year-old Black man and a rising Republican star, spoke about the case at length Wednesday when discussing the outcome, at one point invoking his own mother and describing his understanding of how painful the moment was. Mallory, meanwhile, condemned Cameron in bluntly personal terms.

“You were used by the system to harm your own momma, your own Black momma,” Mallory said. “We have no respect for you. No respect for your black skin. … You do not belong to Black people, at all.”

Taylor’s death spurred months of protests and became a rallying cry across the country, with demonstrators and celebrity advocates calling for the Louisville officers who shot and killed her to face charges.

In March, police were serving a warrant at Taylor’s apartment shortly after midnight when they broke down the door. Her boyfriend, fearing intruders, fired one shot, striking one of the officers.

Three officers fired in response, and two of them struck Taylor a combined six times. After a months-long investigation, a grand jury Wednesday indicted one of the three officers who fired shots that night, charging him with three counts for firing into Taylor’s neighbor’s apartment.

But the revelation that no one would be charged for shooting Taylor spurred a new wave of anguished demonstrations in Louisville and other cities. On Wednesday night, two Louisville police officers were shot amid the protests, which spurred still more anxiety in the city; both officers are recovering, police said.

On Friday, streets remained blocked throughout downtown Louisville, with a nightly curfew in effect at least through the weekend. Police were a visible presence Friday, patrolling the downtown area and posted at intersections.

Among the speakers at the Taylor family news conference was Jacob Blake Sr., whose son was shot by a Kenosha, Wis., police officer last month in an incident that was recorded and which also prompted a wave of demonstrations there and across the country. Jacob Blake Jr. was shot seven times in the back and paralyzed in the shooting, which remains under investigation by Wisconsin state officials.

The elder Blake spoke Friday about driving to Louisville to join another member of a grim collective, people who have had relatives wounded or killed by police.

“I knew I had to be here, standing next to my fraternity member,” Blake said. “We didn't choose this fraternity. This fraternity chose us."

The FBI has launched its own investigation into whether any civil rights violations were committed. The Louisville police are also conducting an investigation to see whether any officers violated the department’s policies and procedures, the mayor’s office said this week.

Police rarely face charges for fatally shooting people, and those that are prosecuted are unlikely to be convicted. The number of these prosecutions increased after a deadly police shooting in Ferguson, Mo., in 2014 spurred a wave of protests, but they largely ended the same as before that case sparked a nationwide reckoning, with police still given wide latitude to use deadly force.

Brett Hankison, the officer indicted Wednesday after the Taylor shooting investigation, was fired from the Louisville police force in June. The grand jury indicted him on three counts, one for each person in the nearby apartment — a pregnant woman, a child and a man. His attorney, Stew Mathews, said Hankison intends to plead not guilty.

The two officers who shot Taylor remain on administrative leave, according to the department.

Robert Schroeder, the interim chief of the Louisville Metro Police Department, said Friday that after “another long night” of demonstrations and unrest, he expected an even larger crowd protesting over the weekend. Schroeder also said officials had heard rumors about people traveling to Louisville, mentioning so-called militia-type groups among them.

“Many of them say they’re coming to help us,” he said of those groups. “Let me be clear: That is not help we need, that is not help we want and it does not help the situation, it only exacerbates the situation.”

Schroeder also addressed media reports documenting emails believed to be sent by Louisville Police Maj. Bridget Hallahan, which quoted her dismissively writing that protesters “do not deserve a second glance or thought from us” and that they would “be the ones washing our cars, cashing us out at the Walmart” or playing video games in their parents’ basements.

On Friday, Schroeder said Hallahan had “accepted responsibility for her emails” and was relieved of her command leading the department’s 5th Division. She would be retiring Oct. 1, he said.

Sacchetti reported from Louisville.