The Metro Nashville Police Department officers who rushed into Covenant School to face a heavily armed active shooter spoke publicly for the first time Monday night detailing their crucial live-saving efforts.

Audrey Hale, 28, killed three children and three staffers during a 14-minute shooting spree on March 27 inside the private Nashville elementary school, before being shot down by two officers.

MNPD officers Rex Engelbert and Det. Michael Collazo are the two officers who killed Hale, leading a fearless team who entered the locked-down school despite being under fire.

Engelbert and Collazo each fired four shots at Hale, who was armed with two assault rifles and a handgun. Hale was killed within minutes of officers’ arrival, as documented in police body camera footage that was later released.

“Not knowing what I was going into, I walked through that door without hesitation.”

Detective Sgt. Jeff Mathes

But Engelbert told reporters Tuesday he would not typically have been in the area – and was on his way to the police academy when he heard the call, according to local news reports.

“I really had no business being where I was,” Engelbert said, according to video shared by WSMV.com. “You can call it fate or God or whatever you want.

“I can’t count on my hands the irregularities that put me in that position when the call for service went out for an active deadly aggressor at a school.”

Detective Sgt. Jeff Mathes said he approached the school to see Engelbert – an officer he did not recognize – leading the charge.

Engelbert reportedly unlocked the door using a master key he received at the school from a staffer outside.

Mathes said he had “never see Rex in my life.”

“When we got there, he had already unlocked the door. Not knowing what I was going into, I walked through that door without hesitation.”

Hale, who police said was transgender, fired into the locked side doors at Covenant School, her former alma mater, around 10:10 a.m. March 27.

The shooter crawled through the shattered glass doors and entered the school.

She was then seen stalking through the empty halls of the school as 911 calls poured in.

Armed with two rifles and a handgun, Hale unleashed 152 bullets during the assault and fired upon officers as they entered the school parking lot, police have said.

Engelbert was first to fire at Hale, and did so within two minutes and 15 seconds of entering the school, according to the report.

Nine-year-olds Evelyn Dieckhaus, Hallie Scruggs and William Kinney were killed in the attack as well as school janitor Mike Hill, substitute teacher Cynthia Peak and headmistress Katherine Koonce.

MNPD Chief Drake acknowledged the six victims and their grieving families at Tuesday’s press conference, reportedly telling reporters: “I could see the pain and hurt that they were dealing with.”

Hale left being a suicide note, a manifesto, and several notes and journals, according to court records obtained by The Post.

Police have said they recovered several more legally obtained weapons hidden throughout Hale’s home, despite that her disapproving parents through she had since sold the weaponry.