By James Simons-
Trevin Campbell has been sentenced to a minimum of 30 years in prison for the murder of Gary Mayhew, bringing to a close a complex investigation that began with the fatal shooting in Brixton nearly five years ago. Campbell, 35, of Harrington Road, South Norwood, was sentenced after being found guilty of murder by a jury at Croydon Crown Court on Friday, following a two-week trial. The case had already taken several years to reach court after an earlier prosecution was abandoned because of insufficient evidence.
Mayhew, 32, was shot in the legs shortly after leaving a silent disco in Belinda Road, Brixton, in the early hours of October 21, 2021. At 6.13am, police were called to King’s College Hospital after Mayhew arrived there with gunshot wounds. Despite medical treatment, he died later that day. Campbell was identified as a suspect soon after the killing and was arrested just four days later at Gatwick Airport as he was preparing to board a flight to Jamaica. He was subsequently charged with murder, but in January 2022 the Crown Prosecution Service concluded there was insufficient prospect of conviction and the case was dropped.
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The investigation did not end there. Detectives continued to examine CCTV footage and mobile phone data, gradually building a new evidential picture linking Campbell to the scene of the shooting. Expert ballistics evidence presented during the eventual prosecution indicated that Campbell had fired the fatal shot from a pistol concealed in his jacket pocket. More than four years after Mayhew’s death, Campbell was arrested again on December 12 last year. The CPS subsequently authorised a fresh murder charge and Campbell appeared before Croydon Magistrates’ Court the following day. The murder weapon itself has never been
Victim: Gary Mayhew was 32 when he was shot after leaving a silent disco in Brixton in 2021
recovered, but the evidence gathered during the renewed investigation was sufficient to secure Campbell’s conviction.
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Detective Inspector Emma Sharp, who led the investigation, said officers had remained determined to secure justice for Mayhew and his family despite the case taking several years to resolve.
“This has been a complex and extensive investigation spanning several years,” she said. “Our officers remained committed to securing justice for Gary and his family and continued to pursue every available line of enquiry to build the strongest possible evidential case.”
Sharp also warned of the wider consequences of gun crime, saying the use of firearms on London’s streets has “devastating consequences for victims, families and communities”.
“This conviction demonstrates our determination to tackle gun crime and hold those responsible fully accountable,” she said.
For Mayhew’s family, Campbell’s sentence marks the culmination of a long wait for justice. The case also demonstrates how investigations can continue long after an initial prosecution has failed, with further analysis of CCTV, telecommunications data and forensic evidence ultimately providing detectives with the case they needed to bring a second prosecution.
Campbell will now serve a minimum of 30 years in prison for the killing of a 32-year-old man whose life was cut short after a night out in Brixton in October 2021.
ther ehave been four murders in south LOndon as a result of gun crime in the past year. this includes Kyrone Moodie (Clapham, September 2025), Eghosa Ogbebor (Woolwich, April 2026), Keanu Taylor (Brixton, May 2026), and Auguste-Marie Bile-aka Amoa (Clapham, August 2026).
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