Four people have been arrested in connection with the murder of a Holyhead woman more than three decades ago, following new forensic developments and a detailed review of evidence.

Doreen Morris, 64, was found dead in the remains of her bungalow at Penrhyn Uchaf on Mill Lane, on the outskirts of Holyhead, in the early hours of March 25, 1994.

Her home had been broken into and set on fire. A subsequent post-mortem established that Mrs Morris had died before the fire began. A later inquest concluded that she had been unlawfully killed, with evidence indicating that she had suffered traumatic injuries after being stabbed with a fork.

The original investigation led to Joseph Carl Westbury being charged with murder. He denied breaking into Mrs Morris's home and was found not guilty following a trial in 1995. He died by suicide in May 2016.

The case remained unsolved for decades. It was formally listed by North Wales Police as an open unsolved murder as recently as October 2025.

There have, however, been several attempts to find new answers.

Mrs Morris's daughter, Audrey Fraser, spent years campaigning for a fuller investigation into her mother's death. Her efforts eventually led to a new inquest being opened, 28 years after the killing.

The inquest, which concluded in 2023, found that Mrs Morris had been unlawfully killed. That finding helped revive the criminal investigation, while in 2024 Crimestoppers offered a reward of up to £20,000 for information leading to the prosecution of those responsible.

North Wales Police's Major Crime Review Team began a fresh review of the case in 2024.

The force has now confirmed that a man and three women, all from North Wales, were arrested this morning, September 2.

Importantly, police say they have been arrested on suspicion of perverting the course of justice, rather than murder.

Officers say forensic results, combined with a detailed examination of witness evidence, have provided grounds to interview the four as part of the continuing review.

The arrests therefore represent a significant new development in a case which has remained unresolved despite the original investigation, a murder trial, a renewed inquest and repeated appeals for information.

Mark Pierce, Senior Review Officer, said the investigation demonstrated that the passage of time would not prevent police from pursuing new opportunities to seek justice.

Mrs Morris's family has been informed of the latest developments.

Anyone with information about the case is asked to contact North Wales Police on 101, quoting Operation Epose, or contact Crimestoppers anonymously.

The investigation remains ongoing and the four people arrested have not been charged.