A case that began with a disputed account of an accidental drowning has been completely reshaped by forensic science, resulting in murder convictions and renewed questions about whether a vulnerable infant could have been protected earlier.

Preston Davey, a 13-month-old boy from Lancashire, died on 27 July 2023 after being rushed to Blackpool Victoria Hospital in a critical condition. Jamie Varley told medical staff he had found the child submerged in a bath. Emergency teams attempted to resuscitate Preston for around 50 minutes, but he was pronounced ᴅᴇᴀᴅ at 7:18pm. What followed was a forensic investigation that fundamentally challenged the initial explanation.

A Home Office post-mortem examination concluded that Preston died from acute upper-airway obstruction. Court evidence later established that the findings were consistent with smothering or an obstruction involving the mouth and airway, rather than accidental drowning. The examination also identified approximately 40 injuries, both external and internal. Prosecutors argued these injuries pointed to repeated harm during the months Preston lived with Varley and his partner, John McGowan-Fazakerley, rather than a single incident.

The medical conclusions became central to the prosecution case. Combined with digital material recovered from the defendants’ phones — including images and videos showing bruising and other injuries — investigators constructed a timeline that prosecutors said demonstrated a pattern of physical cruelty before the final incident.

From foster care to prospective adoption

Preston was born on 16 June 2022. Within days he was placed into emergency foster care. Lancashire Police stated that during his first nine months with foster carers, professionals described him as healthy and happy. An adoption panel later approved Varley and McGowan-Fazakerley as prospective adoptive parents. Preston moved into their home on 31 March 2023. The period between that placement and his death lasted only about four months.

During that time there were contacts with emergency and medical services that have since drawn close examination. On 11 May 2023 an emergency call was made but ended after only a few seconds. A later call to the non-emergency medical service raised concerns about Preston’s breathing and ability to hold his head properly. Follow-up ᴀssessment did not result in the defendants seeking further immediate treatment.

On 25 May Preston was taken to Blackpool Victoria Hospital after Varley reported breathing difficulties and what he described as a seizure. Safeguarding staff contacted police, and detectives from the Child Protection Team attended. Medical staff at that stage did not identify concerns about possible non-accidental injury. Police were not contacted again by hospital staff about Preston until the day of his death.

Those earlier contacts have become particularly significant following the criminal convictions because they raise questions about whether warning signs could have prompted different intervention.

Trial, verdicts and sentences

The trial at Preston Crown Court lasted several weeks. Both defendants denied the charges. Varley gave evidence in his own defence and denied hurting or abusing Preston. His legal team also challenged aspects of the medical interpretation, with an expert witness suggesting that some injuries could have alternative explanations.

After considering the pathology findings, digital evidence, witness testimony and the wider circumstances, the jury delivered its verdicts on 15 June 2026. Varley was found guilty of murder and numerous other offences involving Preston. McGowan-Fazakerley was convicted of causing or allowing the child’s death, child cruelty and a further child-abuse offence.

Three days later, on 18 June, Varley received a whole-life order, meaning he will remain in prison for the rest of his life. McGowan-Fazakerley was sentenced to 25 years, with Lancashire Police stating he must serve two-thirds of that term.

Why forensic evidence proved decisive

The case illustrates how independent medical examination can overturn an initial account. Rather than relying solely on statements from those present, investigators used pathology to establish a picture of what had happened to Preston. The post-mortem findings contradicted the drowning explanation and identified injuries that prosecutors said demonstrated a wider pattern of harm over time.

Digital evidence worked alongside the medical findings. Images and videos recovered from mobile phones provided a visual timeline of Preston’s condition in the months before his death. Medical examination then helped interpret those physical findings within that timeline. Together the two strands formed a substantial part of the prosecution case.

Safeguarding questions remain open

Beyond the criminal convictions, a broader public-interest question persists: how could a child previously described as healthy and happy deteriorate so dramatically within only a few months of entering a new home?

An independent safeguarding review connected to Oldham Council is now set to resume. Preston had originally been taken into care through an emergency order obtained by Oldham Council before being placed with the couple for adoption. The review is expected to examine decisions and communication between the agencies involved in Preston’s care, including the circumstances of his placement and the responses to concerns raised before his death. It is separate from the criminal proceedings and should not be confused with the court’s findings on the defendants’ responsibility.

The forensic evidence that helped reconstruct Preston’s final months is now prompting renewed scrutiny of the systems that were meant to protect him. Attention is likely to focus on what professionals knew at different stages, what information was available, and whether earlier intervention could have changed the outcome.

Preston Davey was only 13 months old when his life ended in July 2023. Three years later the criminal case has reached a defining point: the court has delivered its verdicts, the principal defendant has received a whole-life sentence, and the medical and digital evidence that overturned the original account is driving a fresh examination of insтιтutional responses.

The convictions have closed the criminal chapter. The safeguarding questions remain open — and they continue to demand careful, evidence-based answers.