A fatal dog attack in Warrington, Cheshire has led to the conviction of Sean Garner, 31, who owned the dangerously out-of-control XL bully responsible for mauling an elderly man to death. The harrowing incident, which unfolded in February last year, has sparked renewed scrutiny on banned dog breeds and owner accountability.
What Happened During the Fatal Attack?
John McColl, aged 84, suffered severe injuries after being attacked by an XL bully named Toretto on the driveway of Garner’s home on Bardsley Avenue. The jury at Liverpool Crown Court heard chilling testimony describing how the dog “savaged” Mr. McColl and “guarded him as if he were its prey.” Police officers who arrived at the scene were forced to shoot Toretto 10 times to stop the attack.


A second XL bully, a female named Malibu, was also found inside the house and was subsequently shot by officers. Both dogs belonged to Garner, who had previously admitted possessing these banned animals without the legally required exemption certificates. He denied owning the dogs in a dangerous state but ultimately faced conviction for owning a dog that caused injury while dangerously out of control.


Owner’s Defense and Court Findings
Garner, living in Belle Vale, Liverpool, claimed he took steps to control the dogs and insisted he would never have allowed Toretto near his children if he considered the dog aggressive. He also denied knowing the breed of the dogs was banned, despite evidence that he advertised Malibu for breeding as an XL bully on Instagram. He admitted not walking the dogs for about 10 days but said they were allowed onto the patio for exercise.
The prosecution, led by David Birrell, branded Garner a “selfish, reckless risk taker” who told “bare-faced lies” during the trial. Garner accused Mr McColl of releasing the dog from a padlocked shed—a claim the prosecution dismissed as “ludicrous” and “absurd.”


Further evidence revealed that the dogs had been left on a patio area secured only by a gate with a simple latch, which failed to contain the animals safely. Neighbors recounted desperate attempts to intervene during the attack, using items like a spirit level and walking stick to try to fend off the dog and protect Mr. McColl.
Background and Legal Implications
Garner and his then-pregnant partner had moved into the semi-detached home just three weeks before the tragic attack. They had informed their landlord they owned only one French bulldog, concealing the presence of two XL bullies and a micro bully dog.
The XL bully breed was banned in 2024 under the Dangerous Dogs Act, reflecting growing concerns about the animals’ potential for aggression. Ownership without an exemption certificate is illegal, underscoring the seriousness of Garner’s offenses. He also has a criminal record that includes driving offenses and possession of drugs with intent to supply.
Garner was remanded in custody following his conviction and faces a “substantial prison sentence” when he is sentenced on 17 April.
Why This Case Matters
This tragic incident highlights the devastating consequences of irresponsible dog ownership, particularly involving breeds banned for safety reasons. It underscores the critical need for stringent enforcement of dog control laws and the importance of transparent ownership disclosures to landlords and authorities.
The case also raises broader questions about community safety and the measures needed to prevent such attacks. The violent nature of the assault, the failure to secure the animals properly, and the owner’s denial and misinformation demonstrate gaps in awareness and responsibility that can have fatal outcomes.
As the court prepares to impose sentencing, this case serves as a stark reminder that the law must hold owners accountable to protect vulnerable individuals from preventable harm caused by dangerous dogs.
Full details on Garner’s sentencing have not yet been released.









