Callum Strachan is in prison after being convicted of the murder of Alan Sutton, a father of two from Monk Bretton, Barnsley. On 1 May 2026, Strachan was sentenced to life imprisonment at Sheffield Crown Court with a minimum term of 24 years, meaning he will be at least 47 years old before he can apply for parole.
Who Is Callum Strachan?
Callum Strachan is a 23-year-old man from Monk Bretton, a village on the outskirts of Barnsley in South Yorkshire. Prior to his arrest, Strachan had come to the attention of police following a separate violent incident in the summer of 2024. He had no public profile before the attacks that would eventually lead to his life sentence, and the case drew widespread media attention across Yorkshire and beyond due to the shocking and unprovoked nature of the violence he inflicted.
What Did Callum Strachan Do?
On the afternoon of Sunday, 1 September 2024, Strachan ran out of his home on Burton Road in Monk Bretton wielding a knife in each hand. He used those knives to launch a fatal attack on Alan Sutton, a father of two who was well known and respected in the local community. Alan was stabbed multiple times and died as a direct result of his injuries. Witnesses described the attack as sudden and entirely unprovoked — Strachan had no apparent prior dispute with his victim.
CCTV footage shown during proceedings captured the moment Strachan attempted to hide one of the knives in his pocket in the immediate aftermath of the stabbing. Despite this, he was arrested and charged with murder. The jury deliberated and unanimously found Strachan guilty, with the judge describing him as a violent and dangerous individual whose actions had devastated Alan’s family. Alan Sutton left behind two children and a community that mourned his loss deeply.
The Previous Stabbing in June 2024
The murder of Alan Sutton was not Strachan’s first act of serious violence that year. On 15 June 2024 — less than three months before the fatal stabbing — Strachan attacked another man with a blade in the Monk Bretton area of Barnsley, leaving that victim with severe injuries. Police were already investigating Strachan in connection with that attack when he committed the murder in September 2024. The prior stabbing formed a significant part of the prosecution’s case, helping to establish a pattern of dangerous behaviour that the judge took into account during sentencing.
The fact that Strachan carried out a second, fatal stabbing while already under investigation for a previous knife attack made the case especially alarming for the local community and for the South Yorkshire Police force, which had been monitoring him.
Trial and Conviction
Strachan pleaded not guilty to the murder of Alan Sutton and the case proceeded to a full jury trial at Sheffield Crown Court. Despite his denials, the prosecution presented compelling evidence including CCTV footage of both the attack and Strachan attempting to conceal the weapon. The jury unanimously rejected his account and returned a guilty verdict. The judge presiding over the case described Strachan as violent and dangerous, concluding that he posed a serious ongoing risk to the public.
His family attended the trial and sentencing, and Alan Sutton’s loved ones were present to hear the verdict that brought a measure of justice for their loss. Victim impact statements described the profound and lasting harm the attack had caused to those left behind. If you are trying to locate a prisoner in the UK following a sentencing, our guide on how to find a prisoner explains the options available to families.
The Sentence Explained
Callum Strachan was sentenced on 1 May 2026 at Sheffield Crown Court to a mandatory life sentence for murder. The judge set a minimum tariff of 24 years, meaning Strachan will serve at least 24 years before becoming eligible to apply for parole consideration. He was 23 at the time of sentencing, so he will be at least 47 years old before any release can be considered — and release is never guaranteed even after the minimum term is served.
A life sentence for murder is mandatory under English law. The minimum term reflects the severity of the offence and any aggravating factors such as previous violence. Strachan’s earlier knife attack on a separate victim in June 2024 was considered as an aggravating factor. Once released on licence, he would remain under supervision for the rest of his life and could be recalled to prison at any point if he breaches his conditions. For a full explanation of how the Parole Board assesses applications from life-sentence prisoners, see our dedicated guide.
If you have a family member in custody and want to know how to stay in contact, our guide on how to book a prison visit walks you through the process step by step.
Frequently Asked Questions
Why is Callum Strachan in prison?
Callum Strachan is in prison because he was convicted of the murder of Alan Sutton, a father of two from Monk Bretton, Barnsley. He stabbed Sutton to death on Burton Road on 1 September 2024 using two knives.
What sentence did Callum Strachan receive?
Callum Strachan received a mandatory life sentence at Sheffield Crown Court on 1 May 2026 with a minimum term of 24 years. He will not be eligible to apply for parole until he has served at least 24 years in custody.
Who did Callum Strachan kill?
Callum Strachan killed Alan Sutton, a father of two who lived in Monk Bretton, Barnsley. Alan was stabbed on Burton Road on 1 September 2024 and died as a result of the injuries inflicted upon him.
How old was Callum Strachan when sentenced?
Callum Strachan was 23 years old at the time of his sentencing on 1 May 2026. He will be at least 47 years old before he becomes eligible to apply for parole consideration.
Was Callum Strachan involved in any previous attacks?
Yes. Before the murder of Alan Sutton, Strachan had attacked another man with a blade in the Monk Bretton area on 15 June 2024. He was already under investigation for that attack when he carried out the fatal stabbing in September 2024.
