Twenty-year-old Tyron Bryan had previously been found guilty of the manslaughter of 19-year-old Archie Beston from Barnes.
Bryan was also sentenced to three
years for GBH on a second victim and 18-months for possession of an offensive
weapon.
Another man, Finlay Ahwan, who was also involved in the incident, was jailed for seven years for attempted GBH and dangerous driving.