“I love you, I love you, I love you”, Constable Rachel McCrow told her family over and over again in the moments before she was shot dead.

The young Queensland officer, who would have turned 31 on Friday, repeated the words again into her body-worn camera before she was fatally shot at close range, her mother told an inquest on Thursday.

“The inquest has exposed to the public the many despicable, disgusting and hate-filled acts which so brutally ended Rachel’s hopes and ambitions,” Judy McCrow said.

McCrow and fellow constable Matthew Arnold, 26, were among six people shot dead at a remote property at Wieambilla, west of Brisbane, on December 12, 2022.

On Thursday, the 17th day of the inquest into their deaths, Queensland Coroner Terry Ryan heard statements from the families.

Mrs McCrow said Rachel’s birthday on Friday would be “a day marked by impossible grief” from the premeditated evil that claimed her life.

Constables Matthew Arnold and Rachel McCrow were wounded, then fatally shot at close range.

Brothers Nathaniel, 46, and Gareth Train, 47, set up concealed sniper positions on their driveway and opened fire on Arnold and McCrow as they approached with two other junior officers.

The officers had gone to the property to get information about Nathaniel Train’s whereabouts in response to a missing persons request from NSW Police and also to arrest him for firearms offences in Queensland.

“If proper processes had been followed, would Rachel and Matthew and the other officers have been sent to the property that awful day? We believe their deaths were preventable,” Mrs McCrow said.

Arnold’s mother Sue said her son was a triplet born after five years of trying to conceive via IVF.

“The triplets’ birthday or any other family event, will never be the same again,” she said.

Mrs Arnold said the inquest had revealed “critical operational failings” around radio black spots, incomplete communication from NSW Police about the Train family, and a lack of drone capabilities that could have prevented this tragedy.

“We know who pulled the trigger and killed Matt, but systemic failings and negligence on behalf of many others sent him to Wains Road,” she said.

Mrs Arnold told the inquest her son was “brutally executed, he never got up, he had no chance to fight back. In that instant Matt was taken from us”.

“He never had the chance to come home, nor were we given a chance to say goodbye,” she said.

Arnold was due to go two days later to a relieving shift at the child protection unit in Logan “and coming home to us”.

“The inquest has revealed the critical operational failings that could have prevented this tragedy,” his mother said.

Six people died, including the two young officers and a neighbour, in the Wieambilla siege. Photo: Nine Network

Ryan has previously heard the Trains likely suffered from a “shared psychotic delusion” and were obsessed with conspiracies about law enforcement, secret societies, the end of the world and a final battle between God and Satan.

Evidence at the inquest suggested Gareth Train fatally shot McCrow while she was on the ground after being wounded multiple times.

Mrs McCrow said she agreed with counsel assisting Ruth O’Gorman when she said her daughter had shown “great courage under fire” by continuing to record information about her attackers and shooting back with all 15 rounds from her pistol.

“In the chaotic moments leading up to her brutal murder, she was telling us over and over, ‘I love you’. Messages we were not told about until three months after,” Mrs McCrow said.

“Rachel, we want you to know we love you so much too. We will never stop loving you. We will never stop asking questions however uncomfortable they might be.

“On behalf of Rachel we demand real change so that other families are steered away from the painful path we’ve been forced to take.”

Nathaniel Train joined Gareth and his sibling’s wife Stacey, 45, to fatally shoot neighbour Alan Dare, 58, soon after killing the two constables.

All three Trains were shot dead by specialist police officers hours later after they refused to negotiate or surrender.

Ryan heard the Trains recorded a YouTube video as heavily armed police approached their house, claiming the officers they had killed were “devils and demons”.

“How could anyone regard Matt as a demon? The police officer who helped serve breakfast for hungry children, who would play soccer at lunchtime with kids, who would pull over to help someone change a flat tyre?” Arnold said.

-AAP