What we know about the Nashville school shooting

On Monday, a shooting at a private religious grade school in Nashville, Tennessee, left three adults and three nine-year-olds dead. 

The shooter, identified by police as former student Audrey Hale, 28, was killed by police at the scene. 

The shooting and the possible motive remains under investigation. 

What happened? 

Reports were first made of a shooting at The Covenant School, a private Catholic school that teaches pre-k through sixth grade, on Monday morning. Surveillance video showed the shooter was able to get into the school by shooting out a side door. The shooter then traversed the building, going to the second floor and "firing multiple shots." 

It's not clear when the six victims were killed or how they encountered the shooter. 

The shooter was killed within 14 minutes of the first report of the shooting, police said Monday, an action that likely "saved ... many lives," according to Nashville mayor John Cooper. 

Body camera footage released by the Nashville Police Department showed the shooter on the second floor of the building when they were killed by responding officers. Police said the shooter was firing at police cars outside the school when officers engaged.  

The shooting was a "targeted attack," officials said on Tuesday. The shooter, a former student at The Covenant School, may have had "some resentment for having to go to that school," Nashville Police Chief John Drake told CBS Mornings. 

However, the students and adults killed —including a custodian, a substitute teacher and the head of the school— were likely not specifically targeted, authorities told CBS News. 

"We have no evidence that individuals were specifically targeted," said Don Aaron, the director of media relations at the Nashville Police Department. "This school, this church building was a target of the shooter, but we have no information at present to indicate that the shooter was specifically targeting any one of the six individuals who were murdered."

What we know about the victims 

The six victims were identified Tuesday.

The three children are Evelyn Dieckhaus, Hallie Scruggs and William Kinney, all 9 years old. Scruggs was the daughter of Chad Scruggs, the senior pastor at Covenant Presbyterian Church, which is associated with the private school. 

The adults killed were identified as head of school Katherine Koonce, 60, substitute teacher Cynthia Peak, 61, and custodian Mike Hill, 61. 

Body camera footage released by police shows a female adult telling arriving police officers that some students were in lockdown during the shooting. According to the school's website, The Covenant School has 33 teachers and up to 210 students. Other students were brought to a reunification center after the shooting, police said. 

U.S. flags at federal properties are being flown at half-staff through Friday in honor of the six victims. A large memorial at the school with flowers, stuffed animals and candles has been growing since Monday.

A former student told CBS Mornings that Koonce was "a champion for all students" who was full of life and "had a lot more to give."

"I'm representing a lot of people when I say she pulled us across the finish line often times after we quit," Barrett Severance said. 

The family of Hill said in a statement shared with CBS News' Nashville affiliate that the 61-year-old had worked at the school for 14 years. 

"We would like to thank the Nashville community for all the continued thoughts and prayers. As we grieve and try to grasp any understanding of why this happened, we continue to ask for support," the family wrote. "We pray for the Covenant School and are so grateful that Michael was beloved by the faculty and students who filled him with joy for 14 years. He was a father of seven children ... and 14 grandchildren. He liked to cook and spend time with his family." 

What we know about the shooter 

The shooter was identified by police on Monday as 28-year-old Audrey Hale, of Nashville. No motive has been determined. 

The shooter had three weapons at The Covenant School, police said, but had legally purchased seven weapons from five local gun stores. The shooter lived with their parents and hid the guns from them. According to police, the shooter's parents believed that they had had one gun that had been sold. They did not know about the other purchases and felt that Hale should not own weapons. 

Police said the shooter had been receiving treatment for an "emotional disorder" that had not been reported to authorities. Tennessee does not have a "red flag law" that could give police the authority to remove weapons from a person, Drake told CBS News. 

"As it stands, we had absolutely no idea, actually, who this person was," Drake said.

Police have said that the shooter was extremely prepared for the killings, with a "manifesto" and other details found in their home.

 "We have a manifesto, we have a booklet, that shows exactly what she had planned to do," Drake said. "We have maps that show the entry point into the school, the weapons that were going to be used, the clothing that she was going to wear, and she had drawn it up, almost like a cartoon character. It was exactly what she had on during this incident."  

The maps found were detailed, Drake said, with possible entry routes and surveillance notes. 

"There's quite a bit of writing to it," Drake told reporters Tuesday. "I have not read the whole manifesto. Our team and the FBI have been working on this." 

Drake said that the shooter may have had other targets, including a local mall. Maps found at the shooter's home turned up more maps "pertaining to maybe some thinking about some other incidents," he said. 

 "We strongly believe there was going to be some other targets, including maybe family members, and one of the malls here in Nashville," Drake said. "And that just did not happen."

In:
• Shooting
• School Shooting
• Shooting Death
• Tennessee
• Nashville