26-year-old Jazmel Patterson-Low died from a single gunshot wound.

Around 40 people had gathered on the Westbury Estate before detectives believe an argument broke out.

Police say they hope the offer of this substantial reward will encourage anyone with information to come forward.

Detective Inspector Martin Thorpe said: “It has been a year since the death of Jazmel and we are still actively searching for those involved.

“We want to know what happened that morning on St Rule Street SW8. We know there was a group of around 40 people gathered there on Friday evening and into the early hours of Saturday morning. If you were there, then you may have crucial information for us.

“I am grateful to those who have come forward already, however we still need more from the public. This is why we are now offering a reward of up to £20,000 for information that leads to the successful charge and conviction of the person responsible.

“Think back to last May, did you witness what happened to Jazmel? Do you know who fired the gun? Did you see anyone running from the St Rule Street area? If you know what happened, then you need to speak to us.

“We will support you throughout, you can also contact Crimestoppers to remain anonymous and your identity will be protected. Alliances change over time, so please do the right thing by coming forward.”

On Saturday, the 11th of May 2024, police were called by medical staff at 2.30am to St Thomas’ Hospital after a man was dropped off in a private car, suffering from a gunshot injury.

Despite the best efforts of medical staff, Jazmel died shortly after 3am.

Jazmel was shot that morning on the Westbury Estate in St Rule Street and a post-mortem examination gave cause of death as a single gunshot wound. Jazmel’s family continue to receive support from specially trained officers

A 25-year-old man arrested on suspicion of murder was subsequently released without charge.

Anyone with information that may assist the investigation is asked to call 101 quoting Op Bulbhorn or CAD 884/11MAY24.

To remain 100% anonymous contact the independent charity Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org.