PICTURED: Cops who shot and killed transgender Nashville school shooter trends now

Nashville police have revealed the names and photos of the officers who shot and killed the transgender 28-year-old who killed six people, including three nine-year-olds, at a private school Monday. 

Audrey Hale arrived at the Covenant School in her Honda Fit just before 10am and was killed by police less than 15 minutes after opening fire, killing six. 

A spokesperson for the Nashville Metropolitan Police Department Monday night revealed that Officers Rex Engelbart and Michael Collazo were the members of the team who fired at Hale, ultimately killing her. 

Collazo is a nine-year veteran of the Nashville police force, while Engelbart has served for four years.

Police say that officers rushed to The Covenant School, were able to get in and clear the building as they heard shots from the second floor. 

Once they got to the second floor, a team of officers - including Engelbart and Collazo - encountered Hale, who had been firing through a window at the arriving police cars. They fired on and killed her. 

It comes after police released the horrifying footage of Hale blasting through the doors to the school before starting her deadly rampage.

Hale can be seen arriving at the school and then shooting through the locked glass door, which shatters. 

Wearing a red baseball cap worn backwards, a white t-shirt covered in a tactical vest, and combat trousers, Hale is caught on camera stalking the corridors. Her victims were killed at random, police said.

Cops also released photos of the two semi-automatic rifles and handgun she had on her in the attack. A shotgun and a sawn-off shotgun were also found at her home. 

Police said Hale was transgender, although they haven't specified further details. She was born female, but a LinkedIn profile believed to be hers uses he/him pronouns, suggesting Hale was living as a man. 

Police have continued to identify Hale using she/her pronouns.

On Monday evening John Drake, the chief of Nashville police, said Hale left a manifesto which suggested simmering anger at being sent to a Christian school.

Hale's mother, Norma Hale, worked as a coordinator at a local church and posted about religion frequently on Facebook. 

'The person we know as Audrey Hale, she's a 28-year-old Nashvillan. We have belief that she went to school in the area - at that actual school.

'There's some belief that there was some resentment for having to go to that school,' said Drake, speaking to NBC News.

'Don't have all the details to that just yet and that's why this incident occurred.'

The six victims were three nine-year-old children and three staff members.  

Drake told NBC Nightly News with Lester Holt that the victims were random.

'She targeted random students and persons in the school - whoever she came into contact with,' he said.

'We feel that she identifies as trans but we are still in an initial investigation into that, and if it actually played a role in this incident.

'Right now we are unsure if that played a role.'

He said her manifesto has been turned over to the FBI.

'There was a map of the school with entry points and surveillance that was going to be on that day,' he said. 

She drove to school in a car, which Nashville police said helped identify her.

'Active shooter Audrey Elizabeth Hale, 28, drove this Honda Fit to the Covenant Church/school campus this morning and parked,' the police tweeted. 

'MNPD detectives searched it and found additional material written by Hale.'

At around 10.13am, she opened fire at The Covenant School, shooting and killing nine-year-old Evelyn Dieckhaus, William Kinney and Hallie Scruggs. 

Hallie Scruggs was the daughter of Chad Scruggs, the pastor at the affiliated presbyterian church. 

Substitute teacher Cynthia Peak, 61, head of school Katherine Koonce, 60, and custodian Mike Hill, 61, were also killed.  

She had detailed, drawn maps of the school and had been surveilling it, according to police. 

'We have a manifesto, we have some writings. We have a map drawn out of how this was all going to take place,' Nashville Police John Chief Drake said. 

Drake said that Hale mentioned another location in her manifesto, but decided that there was too much security to launch an attack. 

The small school is run by a church and does not employ a school resource officer. 

President Joe Biden on Monday ordered flags to be flown at half staff until Friday at sunset. He also reiterated his call for an assault weapons ban. 

Shortly before 10.13am, Hale entered the school, shooting through a side door and began opening fire on the second floor. 

Police say all of the doors were locked.  

Police arrived at the scene and heard the gunshots coming from the 2nd floor. 

By 10.27am, Hale had been shot dead. She was armed with two assault-style rifles and a handgun. 

Hale styled herself as an illustrator, drawing under the name Aiden.

Hale's work included renderings of Sponge Bob Squarepants, a Keith Haring tribute, and a drawing of Jack Nicholson in the

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