The chilling audio from a 911 call has captured the terrifying moments as first responders hurried to address a mass shooting at a church associated with a Catholic school on Wednesday.

Communications from emergency services disclosed the urgency with which medical personnel instructed teams to gather extensive supplies of gauze to aid the victims at Annunciation Catholic School and Church in South Minneapolis just after 8:30 a.m.

One of the initial responders reported, “There is a possible active shooter in Minneapolis,” while other responders were directed to bring ample medical support to the scene.

Another responder relayed over the radio, first revealed by Fox9: ‘Bring all the gauze that you have.’ 

Two young children, aged 8 and 10, were killed in the shooting while 17 other victims, 14 of which were children, were wounded. 

Hospitals were alerted to brace for a mass casualty event, and dispatch audio captured one responder mentioning there were “two DOAs inside the church,” indicating that there were individuals “dead on arrival.”

Another responder communicated over the radio, “We have two individuals with gunshot wounds to the head at the front and a critically injured person at the back of the church.”

Police have now identified the shooter as Robin Westman, a 23-year-old transgender woman who changed her name from Robert in 2019. 

The shooter barricaded the doors to the church before firing through its stained glass windows, sending a hail of bullets at the children as they sat in the service to mark the beginning of the school year. 

Police said the two children who lost their lives were killed as they sat in the church pews, while others ducked for cover as the horror unfolded. 

A first responder on the 911 audio said they had one child who was ‘currently vitally stable,’ and added that they were ‘possibly just grazed’.

Soon after the shooting began, Westman died by suicide, and a dispatcher could be heard relaying: ‘We have one suspect with a gunshot wound to the head – has a rifle and shotgun – he’s down right now.’ 

More details have emerged about Westman following the shooting. 

A name change filing from 2020 reveals Westman identified ‘as a female and wants her name to reflect that identification.’ 

It was also revealed that the shooter left a chilling memoir attending a military-like school, writing an ode to death titled ‘But Not The End’.

In the memoir, Westman outlined concerns she would die with ‘regrets that my name not be known for something more’, according to the Star Tribune.

The chilling note came from Westman’s time as a pupil at St. Thomas Academy, a Catholic all-boys school in Mendota Heights, Minneapolis, where students are referred to as cadets, wear uniform and are trained in military skills.

It was one of several schools Westman attended during a seemingly turbulent childhood that included going to one school for just three months, watching a parental divorce and struggling with gender identity. 

Westman also left a twisted manifesto that was unearthed in the aftermath of the deadly shooting, offering some clues into what went through the killer’s mind in the build up to the horrific attack.

Westman shared the manifesto in one of several videos posted on her since-deleted YouTube account just hours before opening fire. 

In a 20-minute-long video, Westman showed off a kill kit of ammunition, magazines and firearms, while revealing a twisted obsession with school shooters, along with a dislike of President Donald Trump, and mockery of the church.

Westman also showed the camera pages of handwritten notes in a final letter to her family and friends.

In the letter, Westman claimed to have cancer caused by a vaping habit. 

‘I think I am dying of cancer. It’s a tragic end as it’s entirely self inflicted. I did this to myself as I cannot control myself and have been destroying my body through vaping and other means,’ the shooter wrote.

Westman went on to write that she wanted ‘to go out on my own means’.

‘Unfortunately, due to my depression, anger and twisted mind, I want to fulfill a final act that has been in the back of my head for years,’ Westman wrote.

The note was signed with the name ‘Robin M Westman, 2002-2025’ and what appeared to be a bird drawing.

As well as the warped letter, the video also showed a stash of gun magazines, with white writing scrawled on them.

Several school shooters’ names including ‘Lanza’ for Sandy Hook mass shooter Adam Lanza was seen on some of the cartridges.

One of the other cartridges was labeled: ‘For the children.’