The families of two police officers killed at a remote Queensland property say there was never any need for police to attend a request that turned into a deadly ambush.
Constables Matthew Arnold, 26, and Rachel McCrow, 29, were among six people shot dead at a remote property at Wieambilla west of Brisbane on December 12, 2022.
The officers had attended the property to obtain information about former primary school principal Nathaniel Train's whereabouts in response to a missing persons request from NSW Police, and also to arrest him for firearms offences in Queensland.
Speaking outside Brisbane Coroners Court on the final day of a five-week inquest, Const Arnold's mother Sue said her family and the McCrows still had critical unanswered questions.
"(The hearings) confirmed our long-held belief that Nathaniel Train was not a missing person, rather someone who had lost touch with his family," Mrs Arnold said.
Brothers Nathaniel, 46, and Gareth Train, 47, set up concealed sniper positions on their driveway and opened fire on constables Arnold and McCrow.
"So, our children were executed for what ... a loss of contact?" Mrs Arnold said.
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 refusing to negotiate or surrender.
Counsel assisting Ruth O'Gorman told Mr Ryan NSW Police officers made "deeply regrettable" oversights in not handing over all their reports on the Trains but there was never any prior information that would have indicated a risk to police.
Mr Ryan gave his condolences to the families of those who died and set a timetable for various parties to provide written submissions over the next three months before he handed down findings.
