An eighth man has been arrested in the investigation into the murder of Trevor Ellis, who was killed in Croydon during the riots in August last year.
The 24-year-old man was arrested on March 19, and released on bail until a later date in April pending further enquiries.
Ellis, 26, from Brixton Hill was killed after his group of friends were involved in a disagreement with another group of around nine people on August 8, 2011.
This led to a pursuit involving three vehicles, which ended in Duppas Hill Road, where Ellis was found in a car with a gunshot wound to his head.
He was pronounced dead at St Georges Hospital on August 9.
Seven men have since been arrested on suspicion of the murder. Five have been bailed to return to south London police stations pending further enquiries.
One man has been released with no further action. Another man was subsequently bailed following his arrest on March 13.
Detectives are appealing for anyone who witnessed the pursuit, which began in Scarbrook Road and involved a dark-coloured estate car and silver hatchback.
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 555 111.