Audrey Hale, Covenant School alumna who identifies as transgender, attacked both students and teachers at the same school in Nashville, Tennessee. Before being shot dead by the police, the 28-year-old had already killed three adults and three children in the attack. Here is how Hale executed the horrific plan from the start:

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Audrey Elizabeth Hale, the active shooter, arrived at the Covenant School on Monday morning and parked her Honda Fit near the campus. When the MNPD detectives searched the car, they discovered additional material about the shooting by Hale.

“We have a manifesto, we have some writings that we’re going over that pertain to this date,” said Metro Nashville Police Department Chief John Drake at a press conference. “We have a map drawn out of how this was all gonna take place. There’s right now a theory that we may put out later but it’s not confirmed. We’ll put that out as soon as we can.”

“We’ve also determined that there were maps drawn of the school in detail, of surveillance, entry points, et cetera. We know and believe entry was gained through shooting through one of the doors, is how they actually got into the school,” he added.

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According to police, the shooter, who was armed with two assault-style rifles and a 9-millimeter pistol, gained entry to the building through a side door after blasting out the glass of these doors.

She started shooting at The Covenant School at 10:13 a.m., murdering William Kinney, Hallie Scruggs, and Evelyn Dieckhaus. There were also three staff member fatalities that included custodian Mike Hill, 61, substitute teacher Cynthia Peak, 61, and school principal Katherine Koonce, 60.

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As authorities responded to the Covenant campus, Hale opened fire from a second-story window on oncoming police vehicles. She was fatally shot at 10.27 a.m. Officers allegedly shot the suspect in a lobby on the second floor.