Detectives investigating the death of a father-of-four who was murdered during last year's riots have offered a £20,000 reward for information that leads to the arrest and prosecution of those responsible.
Trevor Ellis was shot in the head following a car chase as looters ran riot through the streets of Croydon, south London, in August last year.
It came after the 26-year-old and his friends became embroiled in a disagreement with a group of around nine people involved in the disorder.
On the first anniversary of Mr Ellis's killing, Scotland Yard has renewed its appeal for witnesses and information and offered the substantial reward.
Detective Chief Inspector Chris Le Pere said: "Trevor Ellis was murdered a year ago on a night where Croydon, and in fact London, saw unprecedented levels of violence and disorder.
"I believe his killers were actively involved in looting and responsible for robbing at least two people that night. They thought nothing of arming themselves with a gun and ultimately taking a young man's life, leaving four young children without a father. I want anyone who was in central Croydon that night who saw this group or may have images of them on their cameras or phones to come forward."
Mr Ellis, from Brixton Hill, was found with a gunshot wound to the head in a vehicle in Duppas Hill Road at its junction with Warrington Road. He was pronounced dead at St George's Hospital the following day.
The Met said the reward would be given for information that leads to the identification, arrest and prosecution of the persons responsible for the murder.
Detectives specifically appealed for anyone who witnessed the car chase, which involved a dark estate car and a silver hatchback - believed to have been driven by the group of nine - and a dark hatchback in which Mr Ellis was a passenger.
A number of people have been been arrested in connection with the murder. Four men were released without further action while 10 are on bail as police continue investigations. Anyone with information relating to any aspect of the incident is asked to call the incident room on 020 8247 4553. If you wish to remain anonymous call Crimestoppers on 0800 555111.