The evil trio who killed two cops and an innocent bystander may have lured police to their bush bunker with a deceitful tip-off.

Constables Rachel McCrow, 29, and Matthew Arnold, 26, were executed by Gareth, Nathaniel and Stacey Train on Monday evening at an isolated property in Wieambilla, Queensland.

It has since emerged that the Trains were already dressed in camouflage gear and were heavily armed when cops arrived.

They are reported to have created “kill zones” and rigged up motion sensors to alert them to anyone coming near their land.

The officers - and two other cops who escaped with their lives - were attending the property as part of a missing person inquiry when they suddenly came under fire.

A family photo showing Gareth Train. Photo / A Current Affair, Channel 9

Nathaniel Train, 46, had been reported missing by his estranged wife on December 8. She had last seen him in December 2021 but he stayed in touch until October when he seemingly vanished.

Sources have now told The Australian that investigators are looking into whether one of the Trains called the police and told them that Nathaniel Train was at the property in Wieambilla after seeing the appeal for information.

“They are looking at this possibility that they called NSW police and told them they ‘think they know where he is’,” the source said.

“NSW police acted on that and asked their Queensland counterparts to look into it as part of a routine missing persons inquiry.

“He was the bait.”

Police did not comment on the claim.

Earlier on Thursday, disturbing new details came to light about the lives of the murderous Train trio, with people who knew the killers exposing strange and unsettling claims about their past.

It has already been revealed that Stacey was first married to Nathaniel and shared two children with him before leaving him for his brother Gareth.

All three Trains had previously worked for the Queensland Department of Education and moved between different rural towns to work in a number of regional schools.

In 2011, Gareth and Stacy moved to the town of Camooweal in far west Queensland, just a few kilometres from the Northern Territory border, according to ABC.

It wasn’t long before people in the town started noticing something was amiss with the couple.

One local resident who did not wish to be named told the publication that Gareth would often bring his dogs to hunt wild pigs near the local swimming hole where kids liked to hang out.

“We would often find the gutted carcasses of pigs there. Sometimes we would see Gareth with his knives running around with the dogs chasing the pigs,” he said.

“We would hear the boars screaming as he gutted them.”

The Trains’ house also backed onto the local school, which the resident attended at the time.

He said that Gareth would take the pigs and butcher them in his backyard, resulting in “blood and offal” running directly onto the school oval.

“There would be a smell of offal and blood running onto the footy field,” he said.

Another resident, Minnie Kenna, who worked at the school at the time told ABC she had witnessed Gareth “dragging” Stacey by her hair up the stairs and into their house.

“It’s a high house and he was just dragging. I thought ‘it’s none of my business’ and I didn’t like to interfere so I didn’t say anything,” she said.

 An aerial view of the scene at a property in Wieambilla. Photo / Nine

Kenna also revealed she thought Gareth was “different” after she saw him watching his dogs mating.

“I thought, ‘what sort of a person sits in a chair watching them?’” she said.

Female cop killer married both brothers

This all comes after it was revealed Stacey had two kids with her high school sweetheart before she married his brother – sparking a rift spanning two decades in their family.

Stacey Train, her husband Gareth Train and her ex-husband Nathaniel Train all died in a shootout with police at remote Queensland property on Monday afternoon after they rained bullets down on four police officers who were carrying out a missing person’s inquiry.

Constable Rachel McCrow, 29, and Constable Matthew Arnold, 26, were killed “execution-style” at the property in Wieambilla, about three hours west of Brisbane.

A neighbour, Alan Dare, 58, was also shot and killed by the trio after he came over to investigate the situation.

Two other officers, Constable Keely Brough and Constable Randall Kirk, both aged 28, were also involved in the ambush but managed to escape, with the latter suffering a gunshot wound to the leg.

Now the Guardian reports that Gareth and Stacey Train raised two children on various properties they owned in regional parts of Queensland – but Nathaniel, not Gareth, was the children’s father. The children are now believed to be in their 20s.

The publication spoke to family members who said Nathaniel and Stacey were high school sweethearts in Toowoomba, where both were involved in the independent evangelical church run by the brothers’ father, pastor Ronald A Train.

They got married in their late teens in 1995 and had two kids – however, the relationship soured when Mrs Train left her husband for his brother, Gareth.

The split and relationship caused a rift in the family – particularly between the brothers and their father, who was a pastor for 27 years at a church that has strict views on marriage.

Nathaniel and his father had not spoken for 23 years, with Ronald confirming that fact in a Facebook comment under a missing person’s appeal for Nathaniel.

Nathaniel Train and Stacey Train on their wedding day in 1995. Photo / Channel 9

But Ronald told A Current Affair he had “absolutely no idea” Gareth and Stacey had struck up a relationship, got married and shacked up in the bush.

“My second son Gareth is on the Asperger’s line. Very difficult to control, very overpowering,” he said.

“I just think he took over that relationship that Nathaniel and Stacey had.”

He added that Gareth and Nathaniel were fairly close when they were younger because they were “two brothers next to each other”.

The Train brothers and Stacey all previously worked at the Queensland Department of Education but quit their positions in recent months.

Stacey held anti-vax beliefs that saw her quit her job as a head of curriculum at a nearby school in December last year.

Nathaniel’s career as an educator in Queensland and NSW has been well documented and it has been previously reported that Stacey worked in the system as well.

However, information about Gareth and his career has been extremely scarce.

A spokesperson told news.com.au that Gareth resigned from the Department of Education in May 2016.

They said Nathaniel and Stacey resigned in March 2020 and December 2021, respectively.

“They were not subject to any Departmental disciplinary proceedings,” the Department spokesperson said.

“Our deepest thoughts and sincere sympathies are with the victims’ families, friends, colleagues and loved ones at this tragic time.”

Ex-student says Train made her life ‘hell’

A former student of Nathaniel has claimed the ex-principal made her life “hell” while she was in primary school.

Nathaniel (pictured), Gareth and Stacey Train were all previous employees of the Queensland Department of Education. Photo / Supplied

Chantel Kari told news.com.au she and many other Indigenous students had unpleasant interactions with the accused cop killer over the years.

He was the principal at Bentley Park College in Cairns when she was in Year 6, which was around 2006.

“He made my life hell. A lot of the Indigenous students at Bentley Park College had issues with him,” the now 29-year-old said, adding he would have been in his early 30s at the time.

“I was constantly suspended from school for no reason other than he said so, kind of thing.”

Kari said eventually her grandmother stepped in and made a complaint to the Queensland Department of Education.

She said “it was a lot” to deal with and all the paperwork that had to go through the Department took “months”.

“They ended up stepping him down and moving him and the deputy principal from the school because of the constant trouble Indigenous students and families were having with him,” Ms Kari claimed.

Speculation has been rife about how Nathaniel, once a well-known educator within a number of communities, became a cold-blooded cop killer.

The last school that he worked at was Walgett Community College Primary School in NSW, but his time as principal all came crashing down after he became consumed by the NAPLAN cheating scandal.

One student, who may have been related to a teaching assistant, was unable to answer the first two questions on their NAPLAN test but then got all of the remaining 34 questions correct, the Daily Mail reported.

Nathaniel reported this to the NSW Department of Education but was said to be unhappy with the lack of action.

In August 2022, Train suffered a massive heart attack at the school and was saved by teachers who rushed to his aid.

He never returned to school but did not stop his campaign to resolve the cheating scandal, firing off 16 separate emails to the education department.

Cops probe whether deadly rampage was premeditated

Police are reportedly investigating whether the shooting spree that killed officers McCrow, Arnold and neighbour Dare was premeditated.

Constable Rachel McCrow, 29, and Constable Matthew Arnold, 26, were shot and killed at a Queensland property. Photo / Facebook

Queensland Police Commissioner Katarina Carroll told ABC’s 7.30 programme that investigators would “get to the bottom” of what occurred, including whether the trio deliberately lured police to the property.

“We’re definitely investigating every avenue, whether it be premeditated, some of the stuff that’s online from these people,” she said.

“We will investigate what they have been doing not only in recent weeks but in recent years, who have they been interacting with, family, friends, their online presence.”

A police source told ABC that graphic body camera footage from the officers involved would be used to piece together what happened, including how the officers and Dare died.

Locals have also claimed that the Train brothers had been using methamphetamine and bragging about turning Gareth and Stacey’s two-bedroom home into a sort of bunker.

The Daily Mail reported a close family member had told one local that the home had been moved completely off the grid, with the brothers installing solar panels, satellite dishes and rainwater and septic tanks.

“He said it had tunnels, fortified and barred doors and windows, guns everywhere and the boys (the Train brothers) had been taking ice lately,” the local from the nearby town of Tara said.

Margaret, a woman who rented the Wieambilla home ten years ago, told the publication that a relative of the Train brothers had told her they had “‘fortified the house and built tunnels underneath … with brickwork or blocks”.

She said it was an “ordinary house” when she had lived there with her children and grandchildren, but noted she heard that things had recently “gone bad in there”.

“I heard it turned into some kind of weird cult,” Margaret said.

“They had barbed wire. I don’t know about cameras, but it was made so nobody could get inside easily.”

- Ally Foster, news.com.au