Police investigating the murder of man in Southall have formally identified the victim as 23-year-old Surjeet Singh. Next of kin have been informed.
Mr Singh was stabbed in the neck during the large fight at a fairground in Southall Park on Monday.
London Ambulance Service and London's Air Ambulance were called to the scene and treated Surjeet, however he was pronounced dead at the scene.
Seven men have been bailed to return on a date in late August.
More top news
The unlicensed events unfolded on Saturday night at Clapham Common and Tooting Bec Common.
A 37 year old man who was taken to hospital after getting into difficulty in a stretch of water near Maidenhead has died.
Jonty Bravery, who is mentally ill, has been jailed for 15 years after throwing a six year old boy from the Tate modern balcony.