A judge's ruling allowing parents to have a say in the release of police evidence in a Nashville school mass shooting could lead to a "slippery slope," experts said.

Six people died, including three children, in the Covenant School shooting on March 27.

A judge will rule on whether to allow parents of kids killed in the Covenant School shooting to voice their opposition in court to the release of the shooter's writings.

A suspect is dead following a shooting at a private elementary school in Nashville, Tennessee, on Monday, according to police.

A friend of Nashville shooter Audrey Hale tells ABC News that she contacted authorities Monday morning after Hale messaged her online about "planning to die today."

"They trained for that. And this moment happened and they didn’t hesitate at all."

The shooter who attacked the Covenant School in Nashville was identified as 28-year-old Audrey Hale, who law enforcement said once attended the school.

The parents of children killed or traumatized by a mass shooting at Covenant School in Nashville asked a court to prevent the killer's writings from being released.

Jeff Mathes, Michael Colazzo and Rex Engelbert's actions have been compared favorably to the law enforcement who responded to school shootings in both Parkland, Florida and Uvalde, Texas.

The Nashville police officers who ended the mass shooting at a private Christian school last week cited their police training on how they responded to the scene.

The five officers who responded to the mass shooting at The Covenant School spoke with the press for the first time since the March 27 incident.

The suspect who allegedly shot and killed six people at a private Christian school in Nashville, Tennessee, last week had been planning the shooting for months.

Police also said 28-year-old Audrey Hale acted totally alone and unleashed 152 rounds during the shooting.

Funeral services were held for 9-year-old William Kinney, one of the six people killed in the Covenant School shooting.

Funerals are beginning for the six victims of the massacre as authorities release the 911 calls of the attack.

Nine-year-old Evelyn Dieckhaus was the first Covenant School shooting victim laid to rest.

Six people, including three children and three adults, were killed when a shooter opened fire at The Covenant School in Nashville, Tennessee.

Funerals will begin Friday in the wake of Monday's mass shooting at a private Christian school in Nashville.

Chilling 911 calls reveal the desperation inside Covenant School as gunshots sounded.

Semi-automatic rifles, such as those used by the Nashville school shooter, cause great damage to the human body. Trauma experts explain why they're so dangerous.

When asked about the school shooting in Nashville that left six dead, House Speaker Kevin McCarthy said solving gun violence in America won't be solved by a piece of legislation.

Hundreds of people gathered at a candlelight vigil in Nashville on Wednesday evening to mourn and honor the six victims of a mass shooting at an elementary school.

House Speaker Kevin McCarthy said Thursday that lawmakers aren't considering new gun reforms such as an assault weapons ban in the aftermath of the Nashville shooting.

When the suspected shooter drove into the parking lot of Nashville's Covenant School at 9:53 a.m. local time on Monday, a group of children were at a playground.

Hundreds of people gathered at a candlelight vigil in Nashville on Wednesday evening to mourn and honor the six victims of a mass shooting at an elementary school.

Here's what we know about the six victims of a fatal shooting at a private Christian elementary school in Nashville, Tennessee.

Tennessee Gov. Bill Lee has called for prayers in the wake of a Nashville school shooting while noting that "there will be a time to talk about the legislation."

As police continue to investigate the shooting at Convent School in Nashville, new details have been revealed on how students rushed to safety.

Three children and three staff members were killed at The Covenant School on Monday.

Rachel Wegner, a reporter for The Tennessean newspaper, talks about the devastating image of a girl crying after the school shooting in Nashville, Tennessee.

Tennessee state Sen. Heidi Campbell, a Democrat, reacts to the school shooting in Nashville that left three students, three staffers and the suspect dead.

Rep. Maxwell Frost, D-Fla., discusses his reaction to the Nashville shooting and what he believes needs to be done to combat gun violence.

Plus, Starbucks’ former CEO testifies before Congress about union practices, and recovery efforts continue after a massive tornado ripped through rural Mississippi.

The recent shooting at an elementary school in Nashville hits home for two doctors -- including one who had visited the school earlier that day.

Investigators examine writings and work to determine motive of Nashville school shooter.

Audrey Hale was diagnosed with an emotional disorder, officials said, and her parents told police they knew about one gun, but thought it had been sold.

Police said 14 minutes passed between the time they got a 911 call about a shooter at a Christian school outside Nashville and the suspect's death.

This comes as officials learn the shooter purchased seven guns legally while being treated for an emotional disorder.

ABC News’ Jaclyn Lee spoke with a Nashville mother who lives across the street from the scene of the deadly school shooting.

Police said they found plans to attack other targets as well as more guns, including a sawed-off shotgun.

Security video from inside Covenant School in Nashville, Tennessee, captured the shooter who killed six people, including three children, blasting through a glass door.

Authorities said that suspect Audrey Hale, 28, legally purchased seven firearms from five different local gun stores, three of which were used to carry out the attack that killed six people.

Police say the suspect was under a doctor’s care, being treated for an emotional disorder. ABC News’ Lindsay Watts has new witness accounts.

"They trained for that. And this moment happened and they didn’t hesitate at all."

Uvalde parents shared what families of the six Nashville shooting victims can expect next.

Authorities are searching for answers after a shooter killed six people at a private Christian elementary school in Nashville, Tennessee.

As the probe into the Convent School shooting deepens, authorities said the alleged suspect legally purchased the rifles and handgun used in the attack.

ABC News' Kayna Whitworth spoke with Averianna Patton, a former middle school teammate of the Nashville shooting suspect, who received a concerning message before the attack.

Authorities said without the bravery of the officers, the deadly shooting at a small private school could have been much worse.

Nashville Fire Chief William Swann spoke with GMA 3 Tuesday about the first responders who sped to Covenant School after six people were shot.