The brothers, along with a female, are the offenders who police say shot and killed two armed officers and neighbour Alan Dare last night at a property in Wieambilla, west of Brisbane.
Four Queensland police officers went to the property as part of a search for Nathaniel Train, who was subject to a missing person report.
The Queensland police commissioner, Katarina Carroll, on Tuesday said there had been “a lot of ammunition and weaponry” at the property, at Wieambilla in the Western Downs, and that the killed officers “did not stand a chance”.
Property records show the land is owned by Gareth Train and his wife, Stacey. Police went to the property on Monday afternoon looking for Gareth’s brother, Nathaniel Train, who had been reported missing by family members.
Two police officers, constables Matthew Arnold, 26, and Rachel McCrow, 29, were shot and killed after arriving at the property, and a third officer was injured and taken to hospital. Neighbour Alan Dare, 58, was also shot dead by the armed offenders.
Gareth and Nathaniel Train and a woman, who have not yet been identified, were shot and killed in operation involving 16 tactical police about six hours later.