A federal judge in Tennessee has ordered the FBI to hand over the “manifesto” left behind by a transgender killer who gunned down three adults and three children at the Covenant Christian School in Nashville last year before responding officers put an end to the mayhem.

Audrey Elizabeth Hale, who police said identified as a trans male and went by Aiden, shot her way into the school in March 2023, killing Mike Hill, 61, Cynthia Peak, 61, Katherine Koonce, 60, and three 9-year-olds, Hallie Scruggs, Evelyn Dieckhaus and William Kinney.

Metropolitan Nashville Police Chief John Drake told reporters that officers recovered a “manifesto” from Hale’s car as well as other documents, including a hand-drawn map of the school. He said last year it would be released, but it has not been.

In November, portions of what appeared to be crime scene photographs of a couple of pages leaked, however authorities refused to confirm their authenticity.

The FBI, which has previously declined to comment due to pending litigation, did not immediately respond to questions from Fox News Digital.

Memorials for the six victims who were killed in a mass shooting are placed outside the Covenant School in Nashville, Tennessee, on Thursday, March 30, 2023. (KR/Mega for Fox News Digital)

When Hale burst in, the first victim, Hill, sustained fatal gunshot wounds in the process. According to city officials, Koonce heard the first shots while on a Zoom call, hung up and confronted the attacker. Police found her dead in the hallway outside her office.

Drake said investigators had not immediately determined a motive but that they believed Hale, a former student, had targeted the school and its affiliated church. One of the child victims, Hallie, was the pastor’s daughter. 

Audrey Hale was identified by police as the shooter who opened fire at the Covenant School, killing six people. (Audrey Hale)

The manifesto is expected to reveal more about the killer’s motive and rage. Critics have questioned the motive behind continued delays in its release.

The National Police Association is also suing the city of Nashville for the same documents.