A Northern Territory man has been sentenced to life in prison after a court found he brutally murdered his 22-year-old wife during a prolonged and violent assault in Katherine.

Braden Jentian, 38, will spend the rest of his life behind bars after being convicted of murdering his young partner, known in court as Ms Ashley for cultural reasons.

The case shocked the community because of the extreme violence involved and the evidence of repeated domestic abuse that preceded her death.

The victim weighed just 43 kilograms and suffered devastating injuries, including 17 broken ribs, severe head trauma and damage to her heart and lungs.

Justice Sonia Brownhill described the killing as a protracted and highly brutal attack that occurred in September 2024 on a concrete slab in Katherine.

The court heard the couple had spent hours drinking before an argument escalated into a vicious assault.

Evidence presented during the trial showed Ms Ashley suffered injuries consistent with being repeatedly beaten and stomped on while lying on hard ground.

Medical evidence painted a horrifying picture of the final attack.

Forensic experts found injuries to her face, brain, chest, heart and lungs.

Her ribs had been broken in multiple places and she suffered significant internal bleeding.

The court heard that as she lost consciousness from a brain injury, her lungs rapidly filled with blood, causing her death.

Justice Brownhill noted that Ms Ashley’s small size made her particularly vulnerable to the force used against her.

The judge found that Jentian must have foreseen there was a serious risk the assault could kill her.

She concluded that he intended to cause serious harm through the violence he inflicted.

The murder did not occur in isolation.

The trial heard extensive evidence about years of domestic violence throughout the couple’s relationship.

Jentian had previously been convicted of multiple assaults against Ms Ashley and had breached domestic violence orders on several occasions.

Authorities were already aware of serious concerns about the violence she faced before her death.

Jurors also heard details of earlier attacks that occurred in the months leading up to the killing.

In one incident, Jentian punched Ms Ashley, struck her repeatedly with a metal bar, stabbed her with a screwdriver and hit her with a bottle.

In another attack, he allegedly stomped on her head and body, breaking her shoulder blade and causing her to briefly lose consciousness.

Prosecutors argued that these earlier assaults demonstrated a pattern of escalating violence.

They said the murder was the culmination of years of abuse rather than a single isolated event.

The jury ultimately accepted that argument and found Jentian guilty of murder following a lengthy trial.

The emotional impact of the case was felt throughout the courtroom.

Ms Ashley’s mother provided a victim impact statement describing the devastating consequences for the family.

She spoke about organising her daughter’s funeral, closing her accounts and helping her young grandson cope with the loss of his mother.

The court heard that the child still cries out for his mother and struggles to understand why she never came home.

Justice Brownhill said the seriousness of the murder justified a non-parole period longer than the standard period normally applied in Northern Territory murder cases.

She pointed to the prolonged nature of the assault, the vulnerability of the victim and Jentian’s history of violence.

The judge also noted that alcohol-fuelled violence had played a significant role in the relationship over many years.

Life imprisonment is the mandatory sentence for murder in the Northern Territory.

However, courts still determine how long offenders must serve before becoming eligible to apply for parole.

In this case, Jentian was ordered to serve at least 21 years and six months before any possibility of parole can be considered.

The case has renewed attention on domestic violence in remote communities and the challenges faced by authorities in protecting vulnerable victims.

Court proceedings revealed multiple previous incidents involving police, health services and domestic violence interventions before the fatal attack occurred.

Those details have prompted renewed discussion about whether more could have been done to prevent the tragedy.

For Ms Ashley’s family, however, the legal proceedings cannot undo the loss they continue to live with every day.

The sentencing marks the end of one chapter in the case, but the consequences of the violence will remain with those closest to her for many years to come.