Teacher serving Australia's longest abuse sentence gets 7.5 years for schoolgirl assaults

Two schoolgirls suffered sexual abuse and lasting psychological harm; one victim experienced prolonged isolation and emotional distress described as being in a 'dark place for a very long time.'
The verdicts themselves are a vindication of the victims whose accounts were believed despite his denials
The judge explained why concurrent sentencing still matters when a man will likely die in prison.

Across four decades, two schoolgirls carried the weight of what a trusted teacher did to them in silence — a silence that courts have now, at last, formally broken. William Gilfillan, already serving Australia's longest child sexual abuse sentence for crimes against his own daughter, received an additional seven-and-a-half years for assaults committed at a Gippsland high school in the 1980s, the new term running concurrently with a sentence he will almost certainly never outlive. The judge was clear that the arithmetic of punishment was beside the point: what mattered was that the law had looked at these two women and believed them.

  • A man already condemned to die in prison was sentenced again — not to extend his time, but to name what he did to two more children whose suffering had gone unrecognised for forty years.
  • One victim endured physical pain and years of psychological darkness; the other was left isolated and confused, the harm not a moment but a structure built into the life that followed.
  • Gilfillan denied everything throughout, and the judge found no prospect he would ever reckon with what he had done — making the verdicts a vindication the victims had to claim without his acknowledgment.
  • A podcast produced by a major newspaper, based on prison interviews with Gilfillan and his former wife, suggested the original conviction may have been a miscarriage of justice — and found an audience willing to believe it.
  • Authorities are now investigating how a journalist gained such extensive access to incarcerated offenders, raising urgent questions about who controls the narrative of a crime the courts have already decided.
  • The jury in Victoria heard the evidence and believed the girls — a quiet, consequential answer to the doubt the podcast had tried to plant.

William Gilfillan appeared on a video screen from Barwon prison, shaking his head as the judge read back what he had done. The 69-year-old former PE teacher was being sentenced for five counts of sexual assault against two schoolgirls at Traralgon high school in Gippsland during the 1980s — crimes a Victorian jury had found him guilty of in December 2025.

The sentence was seven-and-a-half years, ordered to run concurrently with the 48-year term he was already serving in New South Wales for the rape and torture of his own daughter — a sentence that made him ineligible for parole until age 92. Chief Justice Amanda Chambers was direct about what this meant: Gilfillan would almost certainly die in custody. Stacking the sentences would have been disproportionate, she said, but that was not the same as leniency. The individual verdicts mattered. They were, in her words, a vindication of the two victims whose accounts had been believed despite his denials.

The crimes bore the marks of deliberate violation. One victim was assaulted in the back of the school gymnasium in what the judge described as brazen and forcible. The other was left isolated and emotionally adrift, trapped in a dark place for years afterward. Chambers spoke to what made the offending especially grave: teachers are entrusted by their communities, and Gilfillan had used that trust as a weapon. He had never accepted responsibility, and the judge saw no prospect he ever would.

The case had been legally suppressed for years while the Victorian charges were pending. That silence was broken in 2023 when The Australian published a podcast — Shadow of Doubt — built on extensive prison interviews with Gilfillan and his former wife Karen, who had also been imprisoned for abusing their daughter. The podcast suggested a possible miscarriage of justice. The couple, their identities obscured, insisted they were innocent. Some listeners believed them.

How those interviews were arranged became a story of its own. Guardian Australia reported in April that Corrective Services NSW had launched an investigation into how journalist Richard Guilliatt had gained such access to incarcerated offenders. The question underneath the question was harder: whether a convicted person's amplified insistence on innocence could meaningfully erode what a court had already decided. The Victorian jury, having heard the evidence, answered that question in its own way — they believed the girls.

William Gilfillan sat before a judge on a video screen from Barwon prison, shaking his head as she read the details of what he had done. The 69-year-old former PE teacher was hearing his sentence for five counts of sexual assault against two girls at Traralgon high school in Gippsland during the 1980s. Chief Justice Amanda Chambers sentenced him to seven-and-a-half years—a number that would not, in the end, change much about the rest of his life.

Gilfillan was already serving Australia's longest sentence for child sexual abuse: 48 years imposed by a New South Wales court in 2016 for the rape and torture of his own daughter. He would not be eligible for parole until age 92. By the time that sentence was complete, if he lived that long, he would be 104. The judge made clear what that arithmetic meant: he would almost certainly die in prison.

The new sentence, handed down in December after a jury found him guilty of indecent assault and sexual penetration of a child under 16, was ordered to run concurrently with the existing one. This was not leniency. It was recognition. Chambers explained that to stack the sentences would be disproportionate given the weight already upon him, but that the individual verdicts mattered nonetheless. "It is nonetheless important to recognise and state that the individual sentences of imprisonment imposed on you today are a vindication of the two victims whose accounts of your sexual abuse were believed despite your denials," she said.

The crimes themselves bore the marks of calculated cruelty. One victim, identified in court as TC, was assaulted in the back of the school gymnasium. Chambers described it as "brazen and forcible"—a sexual penetration the girl said caused her real physical pain. The other victim, BM, had been left isolated and confused, trapped in what she later described as a dark place for years. The harm was not momentary. It was structural, woven into the years that followed.

Chambers spoke directly to what made these crimes particularly grave: the relationship between teacher and student, the trust that schools and communities place in educators. "Teachers are entrusted by their schools and school communities in the performance of their role," she said. "This case highlights the profound and enduring harm caused where offending transgresses that foundational relationship of trust." Gilfillan had denied everything. There was, the judge noted, no prospect he would ever accept what he had done, let alone change.

The case had been shrouded in legal silence for years. Between his 2016 conviction in New South Wales and the December 2025 verdict in Victoria, media outlets were barred from naming him because he was facing jury trial on the schoolgirl charges. That silence was broken in 2023 when The Australian newspaper published a podcast called Shadow of Doubt, based on extensive interviews with Gilfillan and his former wife Karen—who had also been imprisoned for her role in abusing their daughter. The podcast suggested the case might be a grave miscarriage of justice. The couple, their voices distorted and identities obscured, told the journalist they were innocent, that "these things just did not happen."

How those interviews happened became its own question. In April, Guardian Australia reported that Corrective Services NSW was investigating how the journalist Richard Guilliatt had been granted access to conduct such extensive interviews with incarcerated offenders. The investigation raised uncomfortable questions about who gets to tell the story of a crime, and whether a convicted person's insistence on innocence, amplified through a major news outlet, could reshape public understanding of a case the courts had already decided. The podcast had found an audience. Some people believed it. But the jury in Victoria had heard the evidence, and they had believed the girls.

Teachers are entrusted by their schools and school communities in the performance of their role. This case highlights the profound and enduring harm caused where offending transgresses that foundational relationship of trust.
— Chief Justice Amanda Chambers
It is nonetheless important to recognise and state that the individual sentences of imprisonment imposed on you today are a vindication of the two victims whose accounts of your sexual abuse were believed despite your denials.
— Chief Justice Amanda Chambers
La Conversación del Hearth Otra perspectiva de la historia
Inventor

Why does the judge order the sentences to run at the same time rather than add them together? Doesn't that seem to reduce the punishment?

Model

It's counterintuitive, but the judge is saying that adding time on top of a 48-year sentence that will almost certainly end in death in prison would be theatrics, not justice. The real point is that the verdicts themselves—guilty on all counts—vindicate the victims. The sentence recognizes they were believed.

Inventor

But what about the victims themselves? Does a concurrent sentence feel like enough to them?

Model

One of them spent years in isolation, in what she called a dark place. No sentence length erases that. What the judge seems to be saying is that the verdict itself—the court saying you're guilty, your denials don't matter—is the vindication. The years don't change what happened to them.

Inventor

The podcast troubles me. How does a journalist get to interview someone in prison and then broadcast doubt about their guilt?

Model

That's what authorities are now investigating. The access itself is the question. These are convicted offenders. The interviews were extensive. And the podcast reached people who might not have followed the trial. It created a counter-narrative.

Inventor

Do you think the podcast changed anything legally?

Model

The jury verdict is final. But it changed something in the public mind, maybe. It planted the idea that this might be wrong. Whether that matters depends on whether you believe the courts got it right—and the evidence the jury heard.

Inventor

What strikes you most about this case?

Model

That a man will almost certainly die in prison, and the system is still making sure his victims are heard. The concurrent sentence isn't mercy. It's the opposite. It's saying: we've already decided your fate. Now we're just making sure the record is clear about what you did to these girls.

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